Tags : XS4 file extension

The Meaning of .XS4 Files and How To Open Them

April 19, 2026 Uncategorized

An .XS4 file is most commonly an old spreadsheet document created for a program called XESS. In practical terms, it serves a role similar to an Excel workbook, but it was designed for a much older spreadsheet application rather than for modern office software. Current file references identify .xs4 specifically as a XESS Worksheet and …