I had the same issue but found the solution was to not use the drive letter specifier - it broke the saveas method. 'C:\temp\file.xls' did not work '\temp\file.xls' worked fine

In reply to Re^3: Win32::OLE - Excel, Can't save as Previous Version by Anonymous Monk
in thread Win32::OLE - Excel, Can't save as Previous Version by JaySal

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