in reply to
Excel to csv
Spreadsheet::Read comes with xlscat and xls2csv.
$ xlscat -c file.xls > file.csv
$ xls2csv file.xls
xlscat and xls2csv are the tools that I would use and recommend.
Compiling them myself
Merijn's HP-UX software
Whatever is shipped with my OS release
None, i use PerlScript
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