PFM can't open what I extract (adding Corinthian helmets to DEI hoplites)

[Kassandros]

I'm trying to add Corinthian helmets to hoplites in the new DeI release. I've never really modded anything before, but I'm pretty sure I can do it, as it seems straight-forward enough.

I've found the portion I need to edit in the .pack using PFM, and I've extracted it (ath_hoplites.variantmeshdefinition), but I can't open it again with PFM in order to edit it, I get an error from the PFM saying "System.Exception: Unknown Header Type"

Any ideas? If I could just get the stinking thing open I think I could finish this pretty quickly haha.

Thanks!

[Karnil Vark Khaitan]

Hey You can use Pfm to extract files from the pack to a folder as in loose files instead of a complied pack file.

If you do that you can edit it by notepad, or just use the normal Tweak to edit it.
and then recompile into a new pack file.