主题：想问大佬和老师们一个小白的问题

Dim Book As New XLS.Book(ProjectPath & "Attachments\资料卡.XLS")

Dim fl As String = ProjectPath & "Reports\资料卡.XLS"

Book.Build()

Book.Save(fl)

Dim App As New MSExcel.Application

Dim Wb As MSExcel.WorkBook = App.WorkBooks.Open(fl)

Dim Ws As MSExcel.WorkSheet = Wb.WorkSheets(1)

Ws.PrintOut

App.Quit