Do you have to update an existing Excel file, or is it enough to generate a new one for every batch of input?

In the latter case it may be feasible to rewrite your program to use Spreadsheet::WriteExcel (or Excel::Writer::XLSX). These modules build XLS (or XLSX) files natively, so they can work even without MS Excel being installed, and in my experience they are reasonably fast.

In reply to Re: Win32::OLE Excel temporary objects destruction by kikuchiyo
in thread Win32::OLE Excel temporary objects destruction by ndts

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