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HL1 file extension

The table below provides useful information about the .hl1 file extension. It answers questions such as:

  • What is the .hl1 file?
  • What program do I need to open a .hl1 file?
  • How can the .hl1 file be opened, edited or printed?
  • How can I convert .hl1 files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Half-Life Saved Game

HL1 file is a Half-Life Saved Game. Half-Life is a first-person shooter game developed by Valve and published by Sierra Studios for Windows in 1998.
HL1 format description not yet available
Category: Game Data files
Application: Half-Life
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
HL1 aliases:
HL1 related links:
HL1 related extensions:

Other types of files may also use the .hl1 file extension.

🚫 The .hl1 file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bl1, h11, hi1, hl, hll, hlq, hlw, hp1, ml1

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

HP Graphic Language Document
Atari ST DEGAS Elite Block
Hioki Logger Communicator Waveform Data
At Home Canada 2011 Tax Return Data
MultiLedger Balance Data
HeuristicLab Storage
FindinSite Database
Haxe Compiler Output
Boulder Dash Game Data

🔴 Can't open a .hl1 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .hl1 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .hl1 file extension, write to us!

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