.SL21

.SL21 file extension

This is the basic program to work with .SL21 extension

HLSW

HLSW

HLSW is entirely free, is very similar to “The All-Seeing Eye”, but very friendly. It allows you to manage servers from different multiplayer games. A few games listed are: Call of Duty (including the version World at War), Half-life, Halo, Medal of Honor, Quake, and others... (more)

The program works with the following extensions: sl15, sl16, sl00, sl17, sl01, sl18, sl02, sl19, sl03, sl20, sl05, sl21, sl06, sl23, sl07, sl24, sl08, sl25, sl09, sl26, sl10, sl27, sl11, sl28, sl12, sl29, sl13, sslf, sl14 and sl30

.SL21 extension is also supported by the following program:

Adobe Photoshop

Adobe Photoshop

Adobe Photoshop delivers more imaging magic, stunning creative options and more.