Hfl.7z -

In many gaming circles, hfl is shorthand for Half-Life , the game that redefined the first-person shooter. Archives with this name are frequently found on sites like the Internet Archive , containing:

Compressed .gcf files (Game Cache Files) used by the GoldSrc engine. hfl.7z

Total conversions or "Further Data" official addon content. In many gaming circles, hfl is shorthand for

Original "WON" versions of Half-Life (v1.1.1.0) that don't require Steam to run. In many gaming circles

If you've downloaded an hfl.7z file, you'll need a modern archiver to see what's inside: