Many classic mods for the GoldSrc engine are distributed as hl.zip (or similarly named files) to be extracted into the SteamApps/common/Half-Life directory. 2. Technical and Protocol Files
When using SteamCMD to install or update servers, you might encounter .zip files related to the "HL" (Half-Life) engine content. hl.zip
Systems like Dataverse.org use languages.zip files to load translation metadata into an installation. 3. Financial Services (Hargreaves Lansdown) Many classic mods for the GoldSrc engine are
In the UK, "HL" is the common abbreviation for the investment platform . hl.zip