in reply to Excel to csv
In Re^3: Win32::OLE Excel search and replace commas, I show how to generate csv files from an existing Excel file, but this requires a machine with Excel. You may have to read the whole thread to follow all my comments, and since the thread isn't really what you're after, I suggest you start by looking at the code and raise any issues that you don't understand. Of course, if you can't run Excel, I'm wasting your time.
Regards,
John Davies
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Seekers of Perl Wisdom