How to convert a .mdl to blender

[Bananalemon23]

So I've extracted the models of pacman and the ghosts from pacman vs. on namco museum but they're .mdl files. How do I view them and convert them into blender?

 

[FAST6191]

There is no common format called mdl (presumably short for model) and being such an obvious shorthand it might be unique to this game (though do check headers and such to see if it is not nsbmd but different extension as we have seen that before).

Blender won't natively support it but plugins to import (and possibly export) are possible. I don't have particularly good examples for DS stuff as not many people go there but if you find one for some random game format you can probably get an idea of how such things work. Here is a gamecube one for instance ( https://github.com/niacdoial/blemd ) which is a related format but closer more to the 3ds 3d formats (which for some reason did end up looked into by a lot of people).
Most DS 3d formats will be fairly close to what goes into the hardware in the end
http://www.problemkaputt.de/gbatek.htm#ds3dvideo
https://wiki.vg-resource.com/Nitro_Files#1._NSBMD_Format for NSBMD as an example. Likewise https://github.com/scurest/apicula could be useful in something to use as a base.
3d models tend to be compressed (lot of wasted space/repeated values) so https://www.romhacking.net/utilities/826/ might also help in this to get it to decompressed states.

If you then need to sort textures many tile editors will struggle as some of the texture formats are not like other 2d graphics formats. Tinke is then a good shout, but can be hard to get to the mode you want.