A pg5 file extension is related to the M5000 Portable Bar Code Scanner update format.
PG5 file extension - M5000 Portable Bar Code Scanner update
What is pg5 file? How to open pg5 files?
File type specification:
The pg5 file extension represents update file for M5000 Portable Bar Code Scanner.
The pg5 file is imported to scanner via RS232 serial cable by M5000 Utility.
Seems to be obsolete.
This pg5 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.