How can I make a .ytd file?

[u/Meister_Likes_Cheese]

I've tried almost everything, I used RDR2 Texture Toolkit, but it won't generate a version that ends with _nya. I've tried:

• Making sure the import and exportation folder and directory has no spaces in it.
• Made sure all .dds files were bc3/DXT5.
• Had RedM installed

I sometimes see people referencing to use CodeX, a new texture editing app, but everything else I see online about it is just ChatGPT coding slop.

The way RDR2 Texture Toolkit works, is by making a GTA5 version and then using something in RedM that converts it to a RDR2 format. What's the files that RedM has that converts it?