主题：EXCEL打印

兄弟，你搞错文件名了：

Dim Book As New XLS.Book(ProjectPath & "Attachments\外购.xlsx")
Dim fl As String = ProjectPath & "Reports\外购.xlsx"
Book.Build()
Book.Save(fl)
Dim Proc As New Process
Proc.File = fl
Proc.Start()

折腾几天，就因为这个？