How to print a MTL, OBJ, and texture file

I am reaching out to see if anyone can advise how I can get a MTL, OBJ, and texture file into an STL file so I can print it on a 3d printer. I used one of those "3d scanner" apps on my cellphone and the files seem to be good quality but cannot get them into a stl to converted to G code to print.

Any help would be much appreciated.

Thank you,