set the Win32::OLE warn level for debugging. Set the level to '3', which will croak when any error happens. 
 Win32::OLE->Option(Warn => 3);

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And also check for last recorded OLE Errors using the following method. 
Win32::OLE->LastError();

[download]

In reply to Re: Deleting excel sheet using win32::ole by lamp
in thread Deleting excel sheet using win32::ole by Anonymous Monk

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