ruby on rails - Best way to deal in reading very old xls files -


i'm coming across transferring , old app new one, of reports generated old desktop app running on old xls files, new app build rails 3.x problem have keeps on getting ole signature error, tried parsing files manually via excel xlsx , rails xls gems start reading them. best way handle old xls files?

  1. are there gems read old xls files, i've tested roo, spreadsheet, rubyxl (i can't simple-spreadsheet work due version conflicts roo-xls , spreadsheet requirements)

  2. gem allow me re-parse file xlsx file , let latest gems read them there on.

take @ gem https://github.com/roo-rb/roo-xls.

taken readme.

this library extends roo add support handling class excel files, including:

  • .xls files
  • .xml files in spreadsheetml format (circa 2003)

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