XLS to XLSX converter

This online document converter allows you to convert your files from XLS to XLSX in high quality.

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Scanned pages will be images.
Convert with OCR

Scanned pages will be converted to text that can be edited.


To get the best results, select all languages that your file contains.

Convert XLS to XLSX

We support a lot of different file formats like PDF, DOCX, PPTX, XLSX and many more. By using the online-convert.com conversion technology, you will get very accurate conversion results.

How to convert a XLS to a XLSX file?

  1. Choose the XLS file you want to convert
  2. Change quality or size (optional)
  3. Click on "Start conversion" to convert your file from XLS to XLSX
  4. Download your XLSX file

To convert in the opposite direction, click here to convert from XLSX to XLS:

XLSX to XLS converter