Is there anything in the worksheet in the first place? I had a similar problem and error message. It turned out that if a worksheet doesn't have anything in it (all cells are undef), Excel, or OLE, or whichever doesn't recognize the worksheet as an existing one. I also don't know OLE very well, so I'm just guessing.

In reply to Re: Problems parsing Excel 2010 .xlsx file with Win32::OLE by nemesdani
in thread Problems parsing Excel 2010 .xlsx file with Win32::OLE by mwarrior

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