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XLTX CSV
Free online converter

Convert XLTX to CSV

Convert now
XLTX to CSV converterFREE
Drop a .XLTX file here
or pick one - we convert it to .CSV and give you the file to download

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert XLTX to CSV

  1. Add your .XLTX file - drop it in the box above or click to browse.
  2. Convert it to .CSV in a few seconds.
  3. Download your new .CSV file.

What to expect

  • Only the active sheet is saved to .csv; a template with multiple tabs must be exported one sheet at a time.
  • Formulas, number formatting, merged cells, and charts are not preserved - the .csv file holds calculated values only.
  • Some regional locales default to semicolons instead of commas as the delimiter; verify your export settings if the resulting file appears malformed.

Frequently asked questions

Does converting affect the original `.xltx` template?
No. Opening an .xltx creates a temporary new workbook - the source template file is never modified.
Can I export all sheets at once?
No. CSV supports only one sheet per file; repeat the export for each tab you need.
Will my formulas be in the CSV?
No - only the calculated results are stored. Reopen the .xltx template if you need the original formulas.
Which free desktop app handles this best?
LibreOffice Calc is fully free and open-source, opens .xltx natively, and gives you full control over the CSV delimiter and character encoding on Windows, macOS, and Linux.
Learn about the formats: .XLTX · .CSV
Programs that convert XLTX: Microsoft Excel · PlanMaker · Microsoft Excel for Mac · Excel Mobile · Apache OpenOffice Calc (OpenOffice.org Calc)