A file with .tga extension is a raster graphic format and was created by Truevision Inc. It was designed for the TARGA (Truevision Advanced Raster Adapter) boards and provided highcolor/truecolor display support for IBM-compatible PCs.
Read More
A file with .usdz is a ZIP archive for the USD (Universal scene description) file format that contains and proxies for files of other formats embedded within the archive.
Read More