Hi guys! I figured id make a quick tutorial on converting OBJ files to FBX files!
Step 1: Go to this website Autodesk | 3D Design, Engineering & Construction Software
Step 2: Click whichever link suits your OS specs
Step 3: Follow the installation instructions
Step 4: Open the Utility And drag your OBJ file into the application
Step 5: If you want to include textures hit the Embed Media Button
If you have any questions let me know! 
That’s one way of doing it, but wouldn’t it be easier to just import the obj into blender or whatever the preferred 3D modeling sofware is, and then export it as a fbx file? No need for external software that way.
You’d still be downloading external software either way. This tutorial is mostly aimed at people who don’t want to download blender just to convert a OBJ file to an FBX file 
i don’t really understand how to include the texture, does it need to be in the Obj file and if so, how? 
this is what i get:
Make sure the .MTL, OBJ and texture files are in the same folder. If that still doesn’t work let me know so I can help you
I have the .mtl and .obj file that roblox exported, but FBX Converter does not let me select/drag the .mtl file. It avoids it. Tips?
It should automatically include the .MTL file
The converter does not let me put in the mtl file and the fbx file it creates has no colors when I upload to roblox. Both .mtl and .obj are in the same folder.
Could you post the MTL and OBJ here?
I don’t need this mesh uploaded anymore, but I would like to replace some unions with meshes. This was the mesh I couldnt upload colors for
StarWarsTest1.obj (102.5 KB)
And it wont let me upload mtl files but this was the source:
newmtl GhostGrey1Mtl
Material Color
Ka 0.792157 0.796079 0.819608
Kd 0.792157 0.796079 0.819608
Ks 0.593341 0.596278 0.613902
d 1
Ns 20655
newmtl MediumStoneGrey1Mtl
Material Color
Ka 0.639216 0.635294 0.647059
Kd 0.639216 0.635294 0.647059
Ks 0.478785 0.475848 0.48466
d 1
Ns 20655
newmtl Black1Mtl
Material Color
Ka 0.105882 0.164706 0.207843
Kd 0.105882 0.164706 0.207843
Ks 0.079308 0.123368 0.155679
d 1
Ns 20655
newmtl Pearl1Mtl
Material Color
Ka 0.905882 0.905882 0.92549
Kd 0.905882 0.905882 0.92549
Ks 0.678524 0.678524 0.69321
d 1
Ns 20655
newmtl InstitutionalWhite1Mtl
Material Color
Ka 0.972549 0.972549 0.972549
Kd 0.972549 0.972549 0.972549
Ks 0.728458 0.728458 0.728458
d 1
Ns 20655
What’s the MTL file name?
The same as the obj.
Rename it to GhostGrey1Mtl or GhostGrey1 Try them both
