Before attempting to redirect STDERR on your own, I would suggest a module like Capture::Tiny 

   my ($stdout, $stderr, @result) = capture {
      eval {
         Spreadsheet::ParseXLSX->new->parse("/tmp/invalid.xlsx")
      }
   };

[download]

In reply to Re: Make Spreadsheet::ParseXLSX be quiet about errors by NERDVANA
in thread Make Spreadsheet::ParseXLSX be quiet about errors by leszekdubiel

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