.XSF

.XSF file extension

This is the basic program to work with .XSF extension

Xion (build 100)

Xion (build 100) Xion Skin

The program works with the following extensions: xsf, xpf

.XSF extension is also supported by the following programs:

Xion

Xion Xion Skin

Xion is a freeware media player with one of the best audio quality ever heard.
ProVision

ProVision ProVision Recorder Data File

Gives you a Enterprise Architecture solution for Business Architecture.