【经验】Delphi对Excel的所有操作

[code]一) 使用动态创建的方法

首先创建 Excel 对象，使用ComObj:
var ExcelApp: Variant;
ExcelApp := CreateOleObject( 'Excel.Application' );

1) 显示当前窗口：
ExcelApp.Visible := True;

2) 更改 Excel 标题栏：
ExcelApp.Caption := '应用程序调用 Microsoft Excel';

3) 添加新工作簿：
ExcelApp.WorkBooks.Add;

4) 打开已存在的工作簿：
ExcelApp.WorkBooks.Open( 'C:\Excel\Demo.xls' );

5) 设置第2个工作表为活动工作表：
ExcelApp.WorkSheets[2].Activate;
或
ExcelApp.WorksSheets[ 'Sheet2' ].Activate;

6) 给单元格赋值：
ExcelApp.Cells[1,4].Value := '第一行第四列';

7) 设置指定列的宽度（单位：字符个数），以第一列为例：
ExcelApp.ActiveSheet.Columns[1].ColumnsWidth := 5;

8) 设置指定行的高度（单位：磅）（1磅＝0.035厘米），以第二行为例：
ExcelApp.ActiveSheet.Rows[2].RowHeight := 1/0.035; // 1厘米

9) 在第8行之前插入分页符：
ExcelApp.WorkSheets[1].Rows.PageBreak := 1;

10) 在第8列之前删除分页符：
ExcelApp.ActiveSheet.Columns[4].PageBreak := 0;

11) 指定边框线宽度：
ExcelApp.ActiveSheet.Range[ 'B3:D4' ].Borders[2].Weight := 3;
1-左 2-右 3-顶 4-底 5-斜( \ ) 6-斜( / )

12) 清除第一行第四列单元格公式：
ExcelApp.ActiveSheet.Cells[1,4].ClearContents;

13) 设置第一行字体属性：
ExcelApp.ActiveSheet.Rows[1].Font.Name := '隶书';
ExcelApp.ActiveSheet.Rows[1].Font.Color := clBlue;
ExcelApp.ActiveSheet.Rows[1].Font.Bold := True;
ExcelApp.ActiveSheet.Rows[1].Font.UnderLine := True;

14) 进行页面设置：

a.页眉：
ExcelApp.ActiveSheet.PageSetup.CenterHeader := '报表演示';
b.页脚：
ExcelApp.ActiveSheet.PageSetup.CenterFooter := '第&P页';
c.页眉到顶端边距2cm：
ExcelApp.ActiveSheet.PageSetup.HeaderMargin := 2/0.035;
d.页脚到底端边距3cm：
ExcelApp.ActiveSheet.PageSetup.HeaderMargin := 3/0.035;
e.顶边距2cm：
ExcelApp.ActiveSheet.PageSetup.TopMargin := 2/0.035;
f.底边距2cm：
ExcelApp.ActiveSheet.PageSetup.BottomMargin := 2/0.035;
g.左边距2cm：
ExcelApp.ActiveSheet.PageSetup.LeftMargin := 2/0.035;
h.右边距2cm：
ExcelApp.ActiveSheet.PageSetup.RightMargin := 2/0.035;
i.页面水平居中：
ExcelApp.ActiveSheet.PageSetup.CenterHorizontally := 2/0.035;
j.页面垂直居中：
ExcelApp.ActiveSheet.PageSetup.CenterVertically := 2/0.035;
k.打印单元格网线：
ExcelApp.ActiveSheet.PageSetup.PrintGridLines := True;

15) 拷贝操作：

a.拷贝整个工作表：
ExcelApp.ActiveSheet.Used.Range.Copy;
b.拷贝指定区域：
ExcelApp.ActiveSheet.Range[ 'A1:E2' ].Copy;
c.从A1位置开始粘贴：
ExcelApp.ActiveSheet.Range.[ 'A1' ].PasteSpecial;
d.从文件尾部开始粘贴：
ExcelApp.ActiveSheet.Range.PasteSpecial;

16) 插入一行或一列：
a. ExcelApp.ActiveSheet.Rows[2].Insert;
b. ExcelApp.ActiveSheet.Columns[1].Insert;

17) 删除一行或一列：
a. ExcelApp.ActiveSheet.Rows[2].Delete;
b. ExcelApp.ActiveSheet.Columns[1].Delete;

18) 打印预览工作表：
ExcelApp.ActiveSheet.PrintPreview;

19) 打印输出工作表：
ExcelApp.ActiveSheet.PrintOut;

20) 工作表保存：
if not ExcelApp.ActiveWorkBook.Saved then
ExcelApp.ActiveSheet.PrintPreview;

21) 工作表另存为：
ExcelApp.SaveAs( 'C:\Excel\Demo1.xls' );

22) 放弃存盘：
ExcelApp.ActiveWorkBook.Saved := True;

23) 关闭工作簿：
ExcelApp.WorkBooks.Close;

24) 退出 Excel：
ExcelApp.Quit;

(二) 使用Delphi 控件方法
在Form中分别放入ExcelApplication, ExcelWorkbook和ExcelWorksheet。

1） 打开Excel
ExcelApplication1.Connect;

2) 显示当前窗口：
ExcelApplication1.Visible[0]:=True;

3) 更改 Excel 标题栏：
ExcelApplication1.Caption := '应用程序调用 Microsoft Excel';

4) 添加新工作簿：
ExcelWorkbook1.ConnectTo(ExcelApplication1.Workbooks.Add(EmptyParam,0));

5) 添加新工作表：
var Temp_Worksheet: _WorkSheet;
begin
Temp_Worksheet:=ExcelWorkbook1.
WorkSheets.Add(EmptyParam,EmptyParam,EmptyParam,EmptyParam,0) as _WorkSheet;
ExcelWorkSheet1.ConnectTo(Temp_WorkSheet);
End;

6) 打开已存在的工作簿：
ExcelApplication1.Workbooks.Open (c:\a.xls
EmptyParam,EmptyParam,EmptyParam,EmptyParam,
EmptyParam,EmptyParam,EmptyParam,EmptyParam,
EmptyParam,EmptyParam,EmptyParam,EmptyParam,0)

7) 设置第2个工作表为活动工作表：
ExcelApplication1.WorkSheets[2].Activate; 或
ExcelApplication1.WorksSheets[ 'Sheet2' ].Activate;

8) 给单元格赋值：
ExcelApplication1.Cells[1,4].Value := '第一行第四列';

9) 设置指定列的宽度（单位：字符个数），以第一列为例：
ExcelApplication1.ActiveSheet.Columns[1].ColumnsWidth := 5;

10) 设置指定行的高度（单位：磅）（1磅＝0.035厘米），以第二行为例：
ExcelApplication1.ActiveSheet.Rows[2].RowHeight := 1/0.035; // 1厘米

11) 在第8行之前插入分页符：
ExcelApplication1.WorkSheets[1].Rows.PageBreak := 1;

12) 在第8列之前删除分页符：
ExcelApplication1.ActiveSheet.Columns[4].PageBreak := 0;

13) 指定边框线宽度：
ExcelApplication1.ActiveSheet.Range[ 'B3:D4' ].Borders[2].Weight := 3;
1-左 2-右 3-顶 4-底 5-斜( \ ) 6-斜( / )

14) 清除第一行第四列单元格公式：
ExcelApplication1.ActiveSheet.Cells[1,4].ClearContents;

15) 设置第一行字体属性：
ExcelApplication1.ActiveSheet.Rows[1].Font.Name := '隶书';
ExcelApplication1.ActiveSheet.Rows[1].Font.Color := clBlue;
ExcelApplication1.ActiveSheet.Rows[1].Font.Bold := True;
ExcelApplication1.ActiveSheet.Rows[1].Font.UnderLine := True;

16) 进行页面设置：
a.页眉：
ExcelApplication1.ActiveSheet.PageSetup.CenterHeader := '报表演示';
b.页脚：
ExcelApplication1.ActiveSheet.PageSetup.CenterFooter := '第&P页';
c.页眉到顶端边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.HeaderMargin := 2/0.035;
d.页脚到底端边距3cm：
ExcelApplication1.ActiveSheet.PageSetup.HeaderMargin := 3/0.035;
e.顶边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.TopMargin := 2/0.035;
f.底边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.BottomMargin := 2/0.035;
g.左边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.LeftMargin := 2/0.035;
h.右边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.RightMargin := 2/0.035;
i.页面水平居中：
ExcelApplication1.ActiveSheet.PageSetup.CenterHorizontally := 2/0.035;
j.页面垂直居中：
ExcelApplication1.ActiveSheet.PageSetup.CenterVertically := 2/0.035;
k.打印单元格网线：
ExcelApplication1.ActiveSheet.PageSetup.PrintGridLines := True;

17) 拷贝操作：

a.拷贝整个工作表：
ExcelApplication1.ActiveSheet.Used.Range.Copy;

b.拷贝指定区域：
ExcelApplication1.ActiveSheet.Range[ 'A1:E2' ].Copy;

c.从A1位置开始粘贴：
ExcelApplication1.ActiveSheet.Range.[ 'A1' ].PasteSpecial;

d.从文件尾部开始粘贴：
ExcelApplication1.ActiveSheet.Range.PasteSpecial;

18) 插入一行或一列：
a. ExcelApplication1.ActiveSheet.Rows[2].Insert;
b. ExcelApplication1.ActiveSheet.Columns[1].Insert;

19) 删除一行或一列：
a. ExcelApplication1.ActiveSheet.Rows[2].Delete;
b. ExcelApplication1.ActiveSheet.Columns[1].Delete;

20) 打印预览工作表：
ExcelApplication1.ActiveSheet.PrintPreview;

21) 打印输出工作表：
ExcelApplication1.ActiveSheet.PrintOut;

22) 工作表保存：
if not ExcelApplication1.ActiveWorkBook.Saved then
ExcelApplication1.ActiveSheet.PrintPreview;

23) 工作表另存为：
ExcelApplication1.SaveAs( 'C:\Excel\Demo1.xls' );

24) 放弃存盘：
ExcelApplication1.ActiveWorkBook.Saved := True;

25) 关闭工作簿：
ExcelApplication1.WorkBooks.Close;

26) 退出 Excel：
ExcelApplication1.Quit;
ExcelApplication1.Disconnect;

(三) 使用Delphi 控制Excle二维图
在Form中分别放入ExcelApplication, ExcelWorkbook和ExcelWorksheet
var asheet1,achart, range:variant;

1）选择当第一个工作薄第一个工作表
asheet1:=ExcelApplication1.Workbooks[1].Worksheets[1];

2）增加一个二维图
achart:=asheet1.chartobjects.add(100,100,200,200);

3）选择二维图的形态
achart.chart.charttype:=4;

4）给二维图赋值
series:=achart.chart.seriescollection;
range:=sheet1!r2c3:r3c9;
series.add(range,true);

5）加上二维图的标题
achart.Chart.HasTitle:=True;
achart.Chart.ChartTitle.Characters.Text:=’ Excle二维图’

学完这个你就成为excel高手了！^&^

下面，以Delphi为例，说明这种调用方法。
Unit excel;
Interface
Uses
Windows,Messages,SysUtils,Classes,Graphics,Controls,Forms,Dialogs,StdCtrls,ComObj,
{ ComObj是操作OLE对象的函数集}
Type
TForm1=class(TForm)
Button1:TButton;
Procedure Button1Click(Sender:Tobject);
Private
{ Private declaration}
Public
{ Public declaration }
end;
var
Form1:Tform1;
Implementation
{$R *.DFM}
procedure TForm1.Button1Click(sender:Tobject);
var
eclApp,WordBook:Variant; {声明为OLE Automation对象}
xlsFileName:string;
begin
xlsFileName:=’ex.xls’;
try
{创建OLE对象：Excel Application与WordBook}
eclApp:=CreateOleObject(‘Excel.Application’);
WorkBook:=CreateOleObject(Excel.Sheet’);
Except
Application.MessageBox(‘你的机器没有安装Microsoft Excel’,
’使用Microsoft Excel’,MB_OK+MB_ICONWarning);
Exit;
End;
Try
ShowMessage(‘下面演示：新建一个XLS文件，并写入数据，并关闭它。’);
WorkBook:=eclApp.workbooks.Add;
EclApp.Cells(1,1):=’字符型’;
EclApp.Cells(2,1):=’Excel文件’;
EclApp.Cells(1,2):=’Money’;
EclApp.Cells(2,2):=10.01;
EclApp.Cells(1,3):=’日期型’;
EclApp.Cells(2,3):=Date;
WorkBook.SaveAS(xlsFileName);
WorkBook.close;
ShowMessage(‘下面演示：打开刚创建的XLS文件，并修改其中的内容，然后，由用户决定是否保存。’);
Workbook:=eclApp.WorkBooks.Open(xlsFileName);
EclApp.Cells(1,4):=’Excel文件类型’;
If MessageDlg(xlsFileName+’已经被修改，是否保存？’,
mtConfirmation,[mbYes,mbNo],0)=mrYes then
WorkBook.Save
Else
WorkBook.Saved:=True; {放弃保存}
Workbook.Close;
EclApp.Quit; //退出Excel Application
{释放Variant变量}
eclApp:=Unassigned;
except
showMessage(‘不能正确操作Excel文件。可能是该文件已被其他程序打开，或系统错误。’);
WorkBook.close;
EclApp.Quit;
{释放Variant变量}
eclApp:=Unassigned;
end;
end;
end

--------------------------------------------

一个操作Excel的单元
这里给出一个Excel的操作单元，函概了部分常用Excel操作，不是我写的，是从Experts-Exchange
看到后收藏起来的，给大家参考。
// 该文件操作单元封装了大部分的Excel操作
// use to manipulate Excel xls File
// Dragon P.C. <2000.05.10>
unit ExcelUnit;
interface
uses
Dialogs, Messages, SysUtils, Grids, Cmp_Sec, ComObj, Ads_Misc;
{!~Add a blank WorkSheet}
Function ExcelAddWorkSheet(Excel : Variant): Boolean;
{!~Close Excel}
Function ExcelClose(Excel : Variant; SaveAll: Boolean): Boolean;
{!~Returns the Column String Value from its integer equilavent.}
Function ExcelColIntToStr(ColNum: Integer): ShortString;
{!~Returns the Column Integer Value from its Alpha equilavent.}
Function ExcelColStrToInt(ColStr: ShortString): Integer;
{!~Close All Workbooks. All workbooks can be saved or not.}
Function ExcelCloseWorkBooks(Excel : Variant; SaveAll: Boolean): Boolean;
{!~Copies a range of Excel Cells to a Delphi StringGrid. If successful
True is returned, False otherwise. If SizeStringGridToFit is True
then the StringGrid is resized to be exactly the correct dimensions to
receive the input Excel cells, otherwise the StringGrid is not resized.
If ClearStringGridFirst is true then any cells outside the input range
are cleared, otherwise existing values are retained. Please not that the
Excel cell coordinates are "1" based and the Delphi StringGrid coordinates
are zero based.}
Function ExcelCopyToStringGrid(
Excel : Variant;
ExcelFirstRow : Integer;
ExcelFirstCol : Integer;
ExcelLastRow : Integer;
ExcelLastCol : Integer;
StringGrid : TStringGrid;
StringGridFirstRow : Integer;
StringGridFirstCol : Integer;
{Make the StringGrid the same size as the input range}
SizeStringGridToFit : Boolean;
{cells outside input range in StringGrid are cleared}
ClearStringGridFirst : Boolean
): Boolean;
{!~Delete a WorkSheet by Name}
Function ExcelDeleteWorkSheet(
Excel : Variant;
SheetName : ShortString): Boolean;
{!~Moves the cursor to the last row and column}
Function ExcelEnd(Excel : Variant): Boolean;
{!~Finds A value and moves the cursor there.
If the value is not found then the cursor does not move.
If nothing is found then false is returned, True otherwise.}
Function ExcelFind(
Excel : Variant;
FindString : ShortString): Boolean;
{!~Finds A value in a range and moves the cursor there.
If the value is not found then the cursor does not move.
If nothing is found then false is returned, True otherwise.}
Function ExcelFindInRange(
Excel : Variant;
FindString : ShortString;
TopRow : Integer;
LeftCol : Integer;
LastRow : Integer;
LastCol : Integer): Boolean;
{!~Finds A value in a range and moves the cursor there. If the value is
not found then the cursor does not move. If nothing is found then
false is returned, True otherwise. The search directions can be defined.
If you want row searches to go from left to right then SearchRight should
be set to true, False otherwise. If you want column searches to go from
top to bottom then SearchDown should be set to true, false otherwise.
If RowsFirst is set to true then all the columns in a complete row will be
searched.}
Function ExcelFindValue(
Excel : Variant;
FindString : ShortString;
TopRow : Integer;
LeftCol : Integer;
LastRow : Integer;
LastCol : Integer;
SearchRight : Boolean;
SearchDown : Boolean;
RowsFirst : Boolean
): Boolean;
{!~Returns The First Col}
Function ExcelFirstCol(Excel : Variant): Integer;
{!~Returns The First Row}
Function ExcelFirstRow(Excel : Variant): Integer;
{!~Returns the name of the currently active worksheet
as a shortstring}
Function ExcelGetActiveSheetName(Excel : Variant): ShortString;
{!~Gets the formula in a cell.}
Function ExcelGetCellFormula(
Excel : Variant;
RowNum, ColNum: Integer): ShortString;
{!~Returns the contents of a cell as a shortstring}
Function ExcelGetCellValue(Excel : Variant; RowNum, ColNum: Integer): ShortString;
{!~Returns the the current column}
Function ExcelGetCol(Excel : Variant): Integer;
{!~Returns the the current row}
Function ExcelGetRow(Excel : Variant): Integer;
{!~Moves the cursor to the last column}
Function ExcelGoToLastCol(Excel : Variant): Boolean;
{!~Moves the cursor to the last row}
Function ExcelGoToLastRow(Excel : Variant): Boolean;
{!~Moves the cursor to the Leftmost Column}
Function ExcelGoToLeftmostCol(Excel : Variant): Boolean;
{!~Moves the cursor to the Top row}
Function ExcelGoToTopRow(Excel : Variant): Boolean;
{!~Moves the cursor to Home position, i.e., A1}
Function ExcelHome(Excel : Variant): Boolean;
{!~Returns The Last Column}
Function ExcelLastCol(Excel : Variant): Integer;
{!~Returns The Last Row}
Function ExcelLastRow(Excel : Variant): Integer;
{!~Open the file you want to work within Excel. If you want to
take advantage of optional parameters then you should use
ExcelOpenFileComplex}
Function ExcelOpenFile(Excel : Variant; FileName : String): Boolean;
{!~Open the file you want to work within Excel. If you want to
take advantage of optional parameters then you should use
ExcelOpenFileComplex}
Function ExcelOpenFileComplex(
Excel : Variant;
FileName : String;
UpdateLinks : Integer;
ReadOnly : Boolean;
Format : Integer;
Password : ShortString): Boolean;
{!~Saves the range on the currently active sheet
to to values only.}
Function ExcelPasteValuesOnly(
Excel : Variant;
ExcelFirstRow : Integer;
ExcelFirstCol : Integer;
ExcelLastRow : Integer;
ExcelLastCol : Integer): Boolean;
{!~Renames a worksheet.}
Function ExcelRenameSheet(
Excel : Variant;
OldName : ShortString;
NewName : ShortString): Boolean;
{!~Saves the range on the currently active sheet
to a DBase 4 table.}
Function ExcelSaveAsDBase4(
Excel : Variant;
ExcelFirstRow : Integer;
ExcelFirstCol : Integer;
ExcelLastRow : Integer;
ExcelLastCol : Integer;
OutFilePath : ShortString;
OutFileName : ShortString): Boolean;
{!~Saves the range on the currently active sheet
to a text file.}
Function ExcelSaveAsText(
Excel : Variant;
ExcelFirstRow : Integer;
ExcelFirstCol : Integer;
ExcelLastRow : Integer;
ExcelLastCol : Integer;
OutFilePath : ShortString;
OutFileName : ShortString): Boolean;
{!~Selects a range on the currently active sheet. From the
current cursor position a block is selected down and to the right.
The block proceeds down until an empty row is encountered. The
block proceeds right until an empty column is encountered.}
Function ExcelSelectBlock(
Excel : Variant;
FirstRow : Integer;
FirstCol : Integer): Boolean;
{!~Selects a range on the currently active sheet. From the
current cursor position a block is selected that contains
the currently active cell. The block proceeds in each
direction until an empty row or column is encountered.}
Function ExcelSelectBlockWhole(Excel: Variant): Boolean;
{!~Selects a cell on the currently active sheet}
Function ExcelSelectCell(Excel : Variant; RowNum, ColNum: Integer): Boolean;
{!~Selects a range on the currently active sheet}
Function ExcelSelectRange(
Excel : Variant;
FirstRow : Integer;
FirstCol : Integer;
LastRow : Integer;
LastCol : Integer): Boolean;
{!~Selects an Excel Sheet By Name}
Function ExcelSelectSheetByName(Excel : Variant; SheetName: String): Boolean;
{!~Sets the formula in a cell. Remember to include the equals sign "=".
If the function fails False is returned, True otherwise.}
Function ExcelSetCellFormula(
Excel : Variant;
FormulaString : ShortString;
RowNum, ColNum: Integer): Boolean;
{!~Sets the contents of a cell as a shortstring}
Function ExcelSetCellValue(
Excel : Variant;
RowNum, ColNum: Integer;
Value : ShortString): Boolean;
{!~Sets a Column Width on the currently active sheet}
Function ExcelSetColumnWidth(
Excel : Variant;
ColNum : Integer;
ColumnWidth: Integer): Boolean;
{!~Set Excel Visibility}
Function ExcelSetVisible(
Excel : Variant;
IsVisible: Boolean): Boolean;
{!~Saves the range on the currently active sheet
to values only.}
Function ExcelValuesOnly(
Excel : Variant;
ExcelFirstRow : Integer;
ExcelFirstCol : Integer;
ExcelLastRow : Integer;
ExcelLastCol : Integer): Boolean;
{!~Returns the Excel Version as a ShortString.}
Function ExcelVersion(Excel: Variant): ShortString;
Function IsBlockColSide(
Excel : Variant;
RowNum: Integer;
ColNum: Integer): Boolean; Forward;
unction IsBlockRowSide(
Excel : Variant;
RowNum: Integer;
ColNum: Integer): Boolean; Forward;
　
implementation
　

type
//Declare the constants used by Excel
SourceType = (xlConsolidation, xlDatabase, xlExternal, xlPivotTable);
Orientation = (xlHidden, xlRowField, xlColumnField, xlPageField, xlDataField);
RangeEnd = (NoValue, xlToLeft, xlToRight, xlUp, xlDown);
ExcelPasteType = (xlAllExceptBorders,xlNotes,xlFormats,xlValues,xlFormulas,xlAll);
{CAUTION!!! THESE OUTPUTS ARE ALL GARBLED! YOU SELECT xlDBF3 AND EXCEL
OUTPUTS A xlCSV.}
FileFormat = (xlAddIn, xlCSV, xlCSVMac, xlCSVMSDOS, xlCSVWindows, xlDBF2,
xlDBF3, xlDBF4, xlDIF, xlExcel2, xlExcel3, xlExcel4,
xlExcel4Workbook, xlIntlAddIn, xlIntlMacro, xlNormal,
xlSYLK, xlTemplate, xlText, xlTextMac, xlTextMSDOS,
xlTextWindows, xlTextPrinter, xlWK1, xlWK3, xlWKS,
xlWQ1, xlWK3FM3, xlWK1FMT, xlWK1ALL);
{Add a blank WorkSheet}
Function ExcelAddWorkSheet(Excel : Variant): Boolean;
Begin
Result := True;
Try
Excel.Worksheets.Add;
Except
MessageDlg('Unable to add a new worksheet', mtError, [mbOK], 0);
Result := False;
End;
End;
{Sets Excel Visibility}
Function ExcelSetVisible(Excel : Variant;IsVisible: Boolean): Boolean;
Begin
Result := True;
Try
Excel.Visible := IsVisible;
Except
MessageDlg('Unable to Excel Visibility', mtError, [mbOK], 0);
Result := False;
End;
End;
{Close Excel}
Function ExcelClose(Excel : Variant; SaveAll: Boolean): Boolean;
Begin
Result := True;
Try
ExcelCloseWorkBooks(Excel, SaveAll);
Excel.Quit;
Except
MessageDlg('Unable to Close Excel', mtError, [mbOK], 0);
Result := False;
End;
End;
{Close All Workbooks. All workbooks can be saved or not.}
Function ExcelCloseWorkBooks(Excel : Variant; SaveAll: Boolean): Boolean;
var
loop: byte;
Begin
Result := True;
Try
For loop := 1 to Excel.Workbooks.Count Do
Excel.Workbooks[1].Close[SaveAll];
Except
Result := False;
End;
End;
{Selects an Excel Sheet By Name}
Function ExcelSelectSheetByName(Excel : Variant; SheetName: String): Boolean;
Begin
Result := True;
Try
Excel.Sheets[SheetName].Select;
Except
Result := False;
End;
End;
{Selects a cell on the currently active sheet}
Function ExcelSelectCell(Excel : Variant; RowNum, ColNum: Integer): Boolean;
Begin
Result := True;
Try
Excel.ActiveSheet.Cells[RowNum, ColNum].Select;
Except
Result := False;
End;
End;
{Returns the contents of a cell as a shortstring}
Function ExcelGetCellValue(Excel : Variant; RowNum, ColNum: Integer): ShortString;
Begin
Result := '';
Try
Result := Excel.Cells[RowNum, ColNum].Value;
Except
Result := '';
End;
End;
{Returns the the current row}
Function ExcelGetRow(Excel : Variant): Integer;
Begin
Result := 1;

(一) 使用动态创建的方法
首先创建 Excel 对象，使用ComObj:
var ExcelApp: Variant;
ExcelApp := CreateOleObject( 'Excel.Application' );
1) 显示当前窗口：
ExcelApp.Visible := True;
2) 更改 Excel 标题栏：
ExcelApp.Caption := '应用程序调用 Microsoft Excel';
3) 添加新工作簿：
ExcelApp.WorkBooks.Add;
4) 打开已存在的工作簿：
ExcelApp.WorkBooks.Open( 'C:\Excel\Demo.xls' );
5) 设置第2个工作表为活动工作表：
ExcelApp.WorkSheets[2].Activate; 或
ExcelApp.WorksSheets[ 'Sheet2' ].Activate;
6) 给单元格赋值：
ExcelApp.Cells[1,4].Value := '第一行第四列';
7) 设置指定列的宽度（单位：字符个数），以第一列为例：
ExcelApp.ActiveSheet.Columns[1].ColumnsWidth := 5;
8) 设置指定行的高度（单位：磅）（1磅＝0.035厘米），以第二行为例：
ExcelApp.ActiveSheet.Rows[2].RowHeight := 1/0.035; // 1厘米
9) 在第8行之前插入分页符：
ExcelApp.WorkSheets[1].Rows[8].PageBreak := 1;
10) 在第8列之前删除分页符：
ExcelApp.ActiveSheet.Columns[4].PageBreak := 0;
11) 指定边框线宽度：
ExcelApp.ActiveSheet.Range[ 'B3:D4' ].Borders[2].Weight := 3;
1-左 2-右 3-顶 4-底 5-斜( \ ) 6-斜( / )
12) 清除第一行第四列单元格公式：
ExcelApp.ActiveSheet.Cells[1,4].ClearContents;
13) 设置第一行字体属性：
ExcelApp.ActiveSheet.Rows[1].Font.Name := '隶书';
ExcelApp.ActiveSheet.Rows[1].Font.Color := clBlue;
ExcelApp.ActiveSheet.Rows[1].Font.Bold := True;
ExcelApp.ActiveSheet.Rows[1].Font.UnderLine := True;
14) 进行页面设置：
a.页眉：
ExcelApp.ActiveSheet.PageSetup.CenterHeader := '报表演示';
b.页脚：
ExcelApp.ActiveSheet.PageSetup.CenterFooter := '第&P页';
c.页眉到顶端边距2cm：
ExcelApp.ActiveSheet.PageSetup.HeaderMargin := 2/0.035;
d.页脚到底端边距3cm：
ExcelApp.ActiveSheet.PageSetup.HeaderMargin := 3/0.035;
e.顶边距2cm：
ExcelApp.ActiveSheet.PageSetup.TopMargin := 2/0.035;
f.底边距2cm：
ExcelApp.ActiveSheet.PageSetup.BottomMargin := 2/0.035;
g.左边距2cm：
ExcelApp.ActiveSheet.PageSetup.LeftMargin := 2/0.035;
h.右边距2cm：
ExcelApp.ActiveSheet.PageSetup.RightMargin := 2/0.035;
i.页面水平居中：
ExcelApp.ActiveSheet.PageSetup.CenterHorizontally := 2/0.035;
j.页面垂直居中：
ExcelApp.ActiveSheet.PageSetup.CenterVertically := 2/0.035;
k.打印单元格网线：
ExcelApp.ActiveSheet.PageSetup.PrintGridLines := True;
15) 拷贝操作：
a.拷贝整个工作表：
ExcelApp.ActiveSheet.Used.Range.Copy;
b.拷贝指定区域：
ExcelApp.ActiveSheet.Range[ 'A1:E2' ].Copy;
c.从A1位置开始粘贴：
ExcelApp.ActiveSheet.Range.[ 'A1' ].PasteSpecial;
d.从文件尾部开始粘贴：
ExcelApp.ActiveSheet.Range.PasteSpecial;
16) 插入一行或一列：
a. ExcelApp.ActiveSheet.Rows[2].Insert;
b. ExcelApp.ActiveSheet.Columns[1].Insert;
17) 删除一行或一列：
a. ExcelApp.ActiveSheet.Rows[2].Delete;
b. ExcelApp.ActiveSheet.Columns[1].Delete;
18) 打印预览工作表：
ExcelApp.ActiveSheet.PrintPreview;
19) 打印输出工作表：
ExcelApp.ActiveSheet.PrintOut;
20) 工作表保存：
if not ExcelApp.ActiveWorkBook.Saved then
ExcelApp.ActiveSheet.PrintPreview;
21) 工作表另存为：
ExcelApp.SaveAs( 'C:\Excel\Demo1.xls' );
22) 放弃存盘：
ExcelApp.ActiveWorkBook.Saved := True;
23) 关闭工作簿：
ExcelApp.WorkBooks.Close;
24) 退出 Excel：
ExcelApp.Quit;

(二) 使用Delphi 控件方法
在Form中分别放入ExcelApplication, ExcelWorkbook和ExcelWorksheet。
1） 打开Excel
ExcelApplication1.Connect;
2) 显示当前窗口：
ExcelApplication1.Visible[0]:=True;
3) 更改 Excel 标题栏：
ExcelApplication1.Caption := '应用程序调用 Microsoft Excel';
4) 添加新工作簿：
ExcelWorkbook1.ConnectTo(ExcelApplication1.Workbooks.Add(EmptyParam,0));
5) 添加新工作表：
var Temp_Worksheet: _WorkSheet;
begin
Temp_Worksheet:=ExcelWorkbook1.WorkSheets.Add(EmptyParam,EmptyParam,EmptyParam,EmptyParam,0) as _WorkSheet;
ExcelWorkSheet1.ConnectTo(Temp_WorkSheet);
End;
6) 打开已存在的工作簿：
ExcelApplication1.Workbooks.Open (c:\a.xls
EmptyParam,EmptyParam,EmptyParam,EmptyParam,
EmptyParam,EmptyParam,EmptyParam,EmptyParam,
EmptyParam,EmptyParam,EmptyParam,EmptyParam,0)
7) 设置第2个工作表为活动工作表：
ExcelApplication1.WorkSheets[2].Activate; 或
ExcelApplication1.WorksSheets[ 'Sheet2' ].Activate;
8) 给单元格赋值：
ExcelApplication1.Cells[1,4].Value := '第一行第四列';
9) 设置指定列的宽度（单位：字符个数），以第一列为例：
ExcelApplication1.ActiveSheet.Columns[1].ColumnsWidth := 5;
10) 设置指定行的高度（单位：磅）（1磅＝0.035厘米），以第二行为例：
ExcelApplication1.ActiveSheet.Rows[2].RowHeight := 1/0.035; // 1厘米
11) 在第8行之前插入分页符：
ExcelApplication1.WorkSheets[1].Rows[8].PageBreak := 1;
12) 在第8列之前删除分页符：
ExcelApplication1.ActiveSheet.Columns[4].PageBreak := 0;
13) 指定边框线宽度：
ExcelApplication1.ActiveSheet.Range[ 'B3:D4' ].Borders[2].Weight := 3;
1-左 2-右 3-顶 4-底 5-斜( \ ) 6-斜( / )
14) 清除第一行第四列单元格公式：
ExcelApplication1.ActiveSheet.Cells[1,4].ClearContents;
15) 设置第一行字体属性：
ExcelApplication1.ActiveSheet.Rows[1].Font.Name := '隶书';
ExcelApplication1.ActiveSheet.Rows[1].Font.Color := clBlue;
ExcelApplication1.ActiveSheet.Rows[1].Font.Bold := True;
ExcelApplication1.ActiveSheet.Rows[1].Font.UnderLine := True;
16) 进行页面设置：
a.页眉：
ExcelApplication1.ActiveSheet.PageSetup.CenterHeader := '报表演示';
b.页脚：
ExcelApplication1.ActiveSheet.PageSetup.CenterFooter := '第&P页';
c.页眉到顶端边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.HeaderMargin := 2/0.035;
d.页脚到底端边距3cm：
ExcelApplication1.ActiveSheet.PageSetup.HeaderMargin := 3/0.035;
e.顶边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.TopMargin := 2/0.035;
f.底边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.BottomMargin := 2/0.035;
g.左边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.LeftMargin := 2/0.035;
h.右边距2cm：
ExcelApplication1.ActiveSheet.PageSetup.RightMargin := 2/0.035;
i.页面水平居中：
ExcelApplication1.ActiveSheet.PageSetup.CenterHorizontally := 2/0.035;
j.页面垂直居中：
ExcelApplication1.ActiveSheet.PageSetup.CenterVertically := 2/0.035;
k.打印单元格网线：
ExcelApplication1.ActiveSheet.PageSetup.PrintGridLines := True;
17) 拷贝操作：
a.拷贝整个工作表：
ExcelApplication1.ActiveSheet.Used.Range.Copy;
b.拷贝指定区域：
ExcelApplication1.ActiveSheet.Range[ 'A1:E2' ].Copy;
c.从A1位置开始粘贴：
ExcelApplication1.ActiveSheet.Range.[ 'A1' ].PasteSpecial;

d.从文件尾部开始粘贴：
ExcelApplication1.ActiveSheet.Range.PasteSpecial;
18) 插入一行或一列：
a. ExcelApplication1.ActiveSheet.Rows[2].Insert;
b. ExcelApplication1.ActiveSheet.Columns[1].Insert;
19) 删除一行或一列：
a. ExcelApplication1.ActiveSheet.Rows[2].Delete;
b. ExcelApplication1.ActiveSheet.Columns[1].Delete;
20) 打印预览工作表：
ExcelApplication1.ActiveSheet.PrintPreview;
21) 打印输出工作表：
ExcelApplication1.ActiveSheet.PrintOut;
22) 工作表保存：
if not ExcelApplication1.ActiveWorkBook.Saved then
ExcelApplication1.ActiveSheet.PrintPreview;
23) 工作表另存为：
ExcelApplication1.SaveAs( 'C:\Excel\Demo1.xls' );
24) 放弃存盘：
ExcelApplication1.ActiveWorkBook.Saved := True;
25) 关闭工作簿：
ExcelApplication1.WorkBooks.Close;
26) 退出 Excel：
ExcelApplication1.Quit;
ExcelApplication1.Disconnect;

(三) 使用Delphi 控制Excle二维图
在Form中分别放入ExcelApplication, ExcelWorkbook和ExcelWorksheet
var asheet1,achart, range:variant;
1）选择当第一个工作薄第一个工作表
asheet1:=ExcelApplication1.Workbooks[1].Worksheets[1];
2）增加一个二维图
achart:=asheet1.chartobjects.add(100,100,200,200);
3）选择二维图的形态
achart.chart.charttype:=4;
4）给二维图赋值
series:=achart.chart.seriescollection;
range:=sheet1!r2c3:r3c9;
series.add(range,true);
5）加上二维图的标题
achart.Chart.HasTitle:=True;
achart.Chart.ChartTitle.Characters.Text:=’ Excle二维图’
6）改变二维图的标题字体大小
achart.Chart.ChartTitle.Font.size:=6;
7）给二维图加下标说明
achart.Chart.Axes(xlCategory, xlPrimary).HasTitle := True;
achart.Chart.Axes(xlCategory, xlPrimary).AxisTitle.Characters.Text := '下标说明';
8）给二维图加左标说明
achart.Chart.Axes(xlValue, xlPrimary).HasTitle := True;
achart.Chart.Axes(xlValue, xlPrimary).AxisTitle.Characters.Text := '左标说明';
9）给二维图加右标说明
achart.Chart.Axes(xlValue, xlSecondary).HasTitle := True;
achart.Chart.Axes(xlValue, xlSecondary).AxisTitle.Characters.Text := '右标说明';
10）改变二维图的显示区大小
achart.Chart.PlotArea.Left := 5;
achart.Chart.PlotArea.Width := 223;
achart.Chart.PlotArea.Height := 108;
11）给二维图坐标轴加上说明
achart.chart.seriescollection[1].NAME:='坐标轴说明';

提供在DELPHI中用程序实现EXCEL单元格合并的源码
Begin
CapStr:=trim(exApp.Cells[Row,1].value);
Col1:=2;
Col2:=FldCount;
For Col1:=2 to Col2 Do
begin
NewCapStr:=trim(exApp.Cells[Row,Col1].value);
if (NewCapStr=CapStr) then
Begin
Cell1:=exApp.Cells.Item[Row,Col1-1];
Cell2:=exApp.Cells.Item[Row,Col1];
exApp.Cells[Row,Col1].value:='';
exApp.Range[Cell1,Cell2].Merge(True);
end
else
begin
CapStr:=NewCapStr;
end;
end;
end；

数据库图片插入到excel中uses：clipbrd
var
MyFormat:Word;
AData:THandle; //临时句柄变量。
APalette:HPALETTE; //临时变量。
Stream1:TMemoryStream;//TBlobStream
xx:tbitmap;
Stream1:= TMemoryStream.Create;
TBlobField(query.FieldByName('存储图片的字段')).SaveToStream(Stream1);
Stream1.Position :=0;
xx:=tbitmap.Create ;
xx.LoadFromStream(Stream1);
xx.SaveToClipboardFormat(MyFormat,AData,APalette);
ClipBoard.SetAsHandle(MyFormat, AData);
myworksheet1.Range['g3','h7'].select;//myworksheet1是当前活动的sheet页
myworksheet1.Paste;

程序中写的一个例子，导出库存到Excel中。
可参看有关Excel操作部分

procedure TfrmExcel.StoreToExcel;
var
data: TADODataSet;
ExcelApp, Ra:Variant;
row: Integer;
begin
if not InitExcel(ExcelApp) then
exit;
data := TADODataSet.Create(nil);
data.Connection := ADOConn;
try
data.CommandText := 'select * from ProInfo';
data.Open;
with TADODataSet.Create(nil) do
begin
Connection := ADOConn;
CommandText := 'select ProNO, sum(ProNum) as sNum from AreaProInfo group by ProNO';
Open;
row := 1;
ExcelApp.Rows[row].RowHeight := 30;
Ra := ExcelApp.Range[ExcelApp.Cells[row, 1], ExcelApp.Cells[row, 7]];
Ra.font.size := 18;
Ra.font.Bold := true;
Ra.MergeCells := true;
Ra.HorizontalAlignment := xlcenter;
Ra.VerticalAlignment := xlcenter;
ExcelApp.Cells[row, 1] := '部件库存情况表';
inc(row);
Ra := ExcelApp.Range[ExcelApp.Cells[row, 1], ExcelApp.Cells[row, 7]];
Ra.font.size := 10;
Ra.HorizontalAlignment := xlRight;
Ra.VerticalAlignment := xlcenter;
Ra.MergeCells := true;
ExcelApp.Cells[row, 1] := FormatDateTime('yyyy-mm-dd', Now);

inc(row);
ExcelApp.Cells[row, 1] := '部件编号';
ExcelApp.Cells[row, 2] := '部件名称';
ExcelApp.Columns[2].ColumnWidth := 15;
ExcelApp.Cells[row, 3] := '单位';
ExcelApp.Columns[3].ColumnWidth := 4;
ExcelApp.Cells[row, 4] := '型号规格';
ExcelApp.Columns[4].ColumnWidth := 20;
ExcelApp.Cells[row, 5] := '部件单价';
ExcelApp.Cells[row, 6] := '库存数量';
ExcelApp.Cells[row, 7] := '库存金额';
while not Eof do
begin
if data.Locate('ProNO', FieldByName('ProNO').AsString, []) then
begin
inc(row);
ExcelApp.Cells[row, 1] := FieldByName('ProNO').AsString;
ExcelApp.Cells[row, 2] := data.FieldByName('ProName').AsString;
ExcelApp.Cells[row, 3] := data.FieldByName('ProUnit').AsString;
ExcelApp.Cells[row, 4] := data.FieldByName('ProKind').AsString;
ExcelApp.Cells[row, 5] := data.FieldByName('ProMoney').AsString;
ExcelApp.Cells[row, 6] := FieldByName('sNum').Value;
ExcelApp.Cells[row, 7] := '=E' + IntToStr(row) + '*F' + IntToStr(row);
end;
Next;
{ if RecNO = 10 then
Break;}
ProgressBar.Position := RecNO * 100 div RecordCount;
Show;
end;
ExcelApp.Cells[row + 1, 2] := '合计';
ExcelApp.Cells[row + 1, 7] := '=SUM(G2:G' + IntToStr(Row);
Free;
end;
finally
data.Free;
ExcelApp.ScreenUpdating := true;
end;
end;

function TfrmExcel.InitExcel(var excel: Variant): Boolean;
begin
try
excel := CreateOleObject('Excel.Application');
except
result := false;
showMsg('调用Excel出错！');
exit;
end;

excel.WorkBooks.Add;
excel.WorkSheets[1].Activate;
excel.Visible := true;
excel.ScreenUpdating := false;
excel.Rows.RowHeight := 18;
excel.ActiveSheet.PageSetup.PrintGridLines := false;
result := true;
end;