Convert ptif to tga

What is the difference between .ptif and .tga?

Description: File extension ptif is mainly associated with the Pyramid encoded TIFF bitmap graphics file format. Multi-resolution TIFF containing successively smaller versions of the image down to the size of an icon.; A TGA file is a file saved in the raster graphic format designed by Truevision. It supports 8, 16, 24, or 32 bits per pixel at a maximum of 24 bits for RGB colors and and 8-bit alpha channel. TGA files are often used to store texture files referenced by 3D video games.