HLSW Game Server Tool file
File type: Various data file
A .sl21 file is a data resource used by HLSW Game Server Tool.
It belongs to HLSW and is not intended as a general-purpose user document.
File type category:
Various data file
Date updated: September 27, 2026
HLSW Game Server Tool is a program for online gamers developed by Stripf Software.
An SL21 file contains a data resource used by HLSW. It is an application-specific resource that supports the operation of HLSW Game Server Tool rather than a format intended for exchange between different programs.
HLSW Game Server Tool is associated with Microsoft Windows, and SL21 files are intended to be used within that software environment.
Open the file with HLSW Game Server Tool on Microsoft Windows. SL21 files are application resources, so they may be loaded by HLSW automatically rather than opened as standalone documents.
An SL21 file is an application-specific data resource and normally has no useful conversion to another file format. Use HLSW to access the data it provides instead of converting the file.
Software applications that handle other tasks involving sl21 files:
Microsoft Windows
HLSW Game Server Tool
Language