Files with hlv file extension can be found as some kind of Chinese multimedia format, possibly old and no longer used.
HLV file extension - Multimedia data
What is hlv file? How to open hlv files?
File type specification:
The hlv file extension is associated with multimedia file format (probably video encoded with H.263 codec) that is used by unspecified Chinese multimedia software or devices, like digital audio players.
HLV format seems to be obsolete, it is not supported by known current multimedia players and devices.
This hlv file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
