Files with liz file extension might be found as old compressed list files. Probably old and no longer used.
LIZ file extension - Compressed list data
What is liz file? How to open liz files?
File type specification:
The liz file extension seems to be used for some older "compressed list" file type.
Most likely some old format without support from developer. No further information could be found.
This liz 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.