I'd like to give two advices:

  1. Use Spreadsheet::ParseXLSX instead of Spreadsheet::XLSX. The first is actively maintained and has a whole lot more functionality than Spreadsheet::XLSX, which is unmaintained, has bugs and lacks features. An additional advantage of Spreadsheet::ParseXLSX is that it uses the same API as Spreadsheet::ParseExcel.
    If the print header is not accessible right now, a new ticket might trigger the author to make it available in Spreadsheet::ParseXLSX.
  2. Use Text::CSV_XS (or Text::CSV) for the generation of the CSV.

Enjoy, Have FUN! H.Merijn

In reply to Re: Print Only header Excel by Tux
in thread Print Only header Excel by TheStig

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