Browse Tools Top 100
SXC XLS
Free online converter

Convert SXC to XLS

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

On this page

Tested on macOS, Windows & Linux
Last verified Oct 2026

More free converters

HEIC, PNG, WEBP, MP3 and more - every tool here is free.

Open the toolbox

How to convert SXC to XLS

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

What to expect

  • .xls is limited to 65,536 rows and 256 columns per sheet; any data beyond those limits will be silently truncated on save.
  • Standard formulas (SUM, IF, VLOOKUP) carry over correctly, but StarBasic macros and StarOffice-specific functions do not transfer to .xls.
  • If the receiving program supports it, saving as .xlsx is the better choice - it has higher row limits and preserves more modern formatting.

Frequently asked questions

Can Microsoft Excel open `.sxc` files directly?
No - Excel has never supported SXC. You must convert the file to .xls or .xlsx first using LibreOffice or a web converter.
Will formulas survive the conversion?
Standard spreadsheet formulas transfer correctly. StarOffice-specific functions that have no XLS equivalent may be replaced by their calculated static values.
Should I convert to `.xls` or `.xlsx`?
Use .xlsx unless the target program specifically requires the older .xls format - XLSX supports larger sheets and more modern Excel features.
Can I convert multiple SXC files at once?
Yes - run soffice --headless --convert-to xls *.sxc on the command line to process every .sxc file in the current folder.
Learn about the formats: .SXC · .XLS
Programs that convert SXC: LibreOffice Calc · Apache OpenOffice Calc (OpenOffice.org Calc)