我写的采用csv格式将数据转换为excel的函数，带有分栏功能

声明部分
procedure DataToExcelCSV(SaveFileName:string;DataSet:TDataSet;ShowCompleteBoX:Boolean=True;GroupCount:integer=1);

......
{------------------------------------------------------}
{检测findStr是否in mainStr,如果存在则返回True,否则False}
{------------------------------------------------------}
function TFun.IsStrInOtherStr(mainStr,FindStr: string): Bool;
begin
if strPos(pAnsiChar(mainStr),pAnsichar(FindStr))=nil
then
result:=False
else
result:=True;
end;
-------------------------------------------------------------------------------------
//lijinhao 2004-4-4
//采用csv格式..将数据转换为excel.
//速度非常快,而且具有分栏功能
//避免了用comobj带来到弊端
//GroupCount:用于设定分栏数。。默认为1
//ShowCompleteBoX:boolean;来设定完成是否显示完成提示
//-------------------------------------------------------------------------------
procedure TFun.DataToExcelCSV(SaveFileName:string;DataSet:TDataSet;ShowCompleteBoX:Boolean;GroupCount:integer);
Function CheckStr(str:string):string;
begin
if IsStrInOtherStr(str,',') then str:='"'+str+'"';
result:=str;
end ;
//===============//
var
ExcelFile:TextFile;
iRecordCount:integer;//记录数
iFieldCount:integer;//字段数
i,j,k:integer;
TempStr:string;
begin
try
if Not DataSet.Active then DataSet.Open;
iRecordCount:=DataSet.RecordCount;
iFieldCount:=DataSet.FieldCount;
assignFile(ExcelFile,SaveFileName+'.csv');
rewrite(ExcelFile);
DataSet.First;
(*--------写字段头------*)
TempStr:='';
for K:=0 to iFieldCount-1 do //字段数
begin
if TempStr<>'' then
TempStr:=TempStr+','+CheckStr(DataSet.Fields[k].FieldName)
else
TempStr:=CheckStr(DataSet.Fields[k].FieldName)
end ;(* for K:=1 to FieldCount do*)
for i:= 1 to GroupCount-1 do TempStr:=TempStr+','+TempStr;
writeLn(ExcelFile,TempStr);
//---------------------------------
(*写入记录，按分栏数来写*)
i:=1;
while i<=round(iRecordCount div GroupCount) do
begin
TempStr:='';
//如:F0 F1 F2 F3 | F0 F1 F2 F3
for j:=1 to GroupCount do //分栏数
begin
if DataSet.Eof then break;
inc(i);
for K:=0 to iFieldCount-1 do //字段数
begin
//--------------
if tempstr<>'' then
TempStr:=TempStr+','+CheckStr(DataSet.Fields[k].AsString)
else
TempStr:=CheckStr(DataSet.Fields[k].AsString);
//------------
end ;(* for K:=1 to FieldCount do*)
DataSet.Next;
end ;(* for j:=1 to GroupCount do*)
writeLn(ExcelFile,TempStr);
if DataSet.Eof then break;
end ;//while i<=round(iRecordCount div GroupCount) do
if ShowCompleteBoX then MessageBox(0,'完成DataToExcel的转换！','完成提示:',mb_ok+MB_IconInformation)
finally
closeFile(ExcelFile);
end;
end;