HLSW file
File type: Various data file
The sl22 file extension is used by HLSW, a game server browser and management tool for Microsoft Windows.
An sl22 file contains application data used by HLSW.
File type category:
Various data file
Date updated: October 3, 2026
HLSW is a Microsoft Windows tool for finding, monitoring, and managing online computer game servers. It can display server information and help users connect to game servers.
The sl22 file stores data used by the HLSW application. It is an internal HLSW data file rather than a general-purpose document intended for editing in another program.
Open an sl22 file with HLSW on Microsoft Windows. If HLSW is installed, opening the file from Windows may launch the associated application; otherwise, open it from within HLSW if the program provides an appropriate command.
Because this is HLSW application data, it may not display meaningful information when opened in a text editor or another unrelated program.
An sl22 file is application data for HLSW and normally has no useful conversion to another file format. Keep the file in its original form for use with HLSW.
If information stored in HLSW must be used elsewhere, export or copy it from HLSW using any export function the program provides.
Software applications that handle other tasks involving sl22 files:
Microsoft Windows
HLSW Game Server Tool
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