Thank you for that info about Notepad++.

Why that should work but neither Notepad nor Wordpad is interesting...

Also, have you tried any of the Truebones' animated FBX freebies ??

I do not know if he's 'just lucky' or uses Autodesk's official SDK, but his FBX models and conversions all seem to 'Play Nice' with my P_11.3...

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Disclosure: I bought Truebone's 'PMX to FBX' Converter ($$) to get rigged MMD figures into Poser. IIRC, it also ports animation.

Two 'gotchas'...

This first version cannot port texture calls. Hand-loading those within Poser may be tedious, but totally beats trying to rig figure..

Do NOT port PMX models flagged 'TDA' or 'TDA-derived', as their 'T&Cs' prohibit use outside MMD environment.
IIRC, TDA's author was badly affected by SL piracy, slammed the door...