主题：如何预览excel报表

试试VBA

Dim Book As New XLS.Book(ProjectPath & "Attachments\出库单.xls")
Dim fl As String = ProjectPath & "Reports\出库单.xls"
Book.Build() '生成细节区
Book.Save(fl) '保存工作簿

Dim App As New MSExcel.Application
Dim Wb As MSExcel.WorkBook = App.WorkBooks.Open("D:\Reports\出库单.xls")
Dim Ws As MSExcel.WorkSheet = Wb.WorkSheets(1)
Ws.PrintPreview