Thanks a lot. I added the  Win32::OLE->Option(Warn => 4); before unless($sheet = eval { $book->Worksheets($sheet_name) }) . And it works well exactly what I wanted.

In reply to Re^2: why cann't $@ output the eval error in this case? by lisa2moon
in thread why cann't $@ output the eval error in this case? by lisa2moon

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