CSV XLTX
Free online converter

Convert CSV to XLTX

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CSV to XLTX converterFREE
Drop a .CSV file here
or pick one - we convert it to .XLTX 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 CSV to XLTX

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

What to expect

  • Opening the template creates a fresh workbook from the data rather than editing the template itself.
  • The template holds cell values only; CSV has no formulas or styling to carry over.
  • XLTX cannot store macros, so no automation is included.

Frequently asked questions

What does converting CSV to XLTX produce?
An Excel template: opening it creates a new, unnamed workbook pre-filled with the CSV data and any template formatting, while the template file itself stays untouched.
Why make a template instead of a normal workbook?
A template suits reusing the same starting data or layout repeatedly, so each new file begins from the same content without overwriting the original.
Can an XLTX contain macros?
No - XLTX cannot hold VBA macros (that requires the .xltm variant), so the template carries data and formatting only.
What opens an XLTX file?
Microsoft Excel, LibreOffice Calc and Google Sheets all open the Open XML template format without extra software.
Learn about the formats: .CSV · .XLTX
Programs that convert CSV: Microsoft Excel · PlanMaker · Microsoft Excel for Mac