XLS to XLSX Converter

by silambu83 · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 21 Oct 2026

Convert .xls files to .xlsx format directly in the browser. Right-click .xls links or open this extension to upload and convert.

Users

−20 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#179K

#150K among extensions

Version

1.3.2

updated 4 Jun 2026

Users

monthly, 5 months

Latest, 21 Oct 2026: 14 usersMove the mouse over the chart for any month

Ratings count

monthly, 5 months

Latest, 21 Oct 2026: 0 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About XLS to XLSX Converter

Users can convert xls files to xlsx or csv files without using any external tools. if anyone who wants their old xls as xlsx or csv file formats, it will be helpful. Also it compresses very large uncompressed xlsx file formats. Multiple sheets data in one xls file can be merged into one CSV file.