🚀 go-pugleaf

Hewlett-Packard has a product called LIF Utilities for the PC (product
No. HP E2080A) which transfers files from HP formatted disks to 
DOS formatted disks and vice versa.  This is a DOS program that
runs on IBM PC's and clones and uses PC's internal disk drives to
read/write HP formatted disks (also it can talk to CS80/SS80 drives 
through HP's PC GPIO card).  
I assume that by HP format you mean LIF format (Logical Interchange Format)
and NOT HFS (i.e., Unix) format. Since this program does not handle
HFS formatted disks.
Besides HP LIF format to DOS format and DOS format to HP LIF format conversion
functions, this program has other utilities such as HP LIF catalog, purge, 
hexadecimal dump and initialize disk to HP format.
This may be what you need.  If you have any particular questions send them
to me via email.  I may be able to help you.

Tony Yokoyama
Hewlett-Packard, Measurement Systems Operation
tonyy@hpislx