Files with fhlp file extension can be found as old "Fetch Help" files. Seems old and no longer used format.
FHLP file extension - Fetch help data
What is fhlp file? How to open fhlp files?
File type specification:
The fhlp file extension seems to have been in the past used for some "Fetch Help" file type. Most likely obsolete and no longer in use.
Most likely some old format without support. No further information could be found.
This fhlp 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.