Convert avi to art

What is the difference between .avi and .art?

Description: An AVI file is a file saved in a multimedia container format created by Microsoft. It stores video and audio data that may be encoded in a variety of codecs such as DivX and XviD. AVI files typically use less compression than similar formats such as .MPEG and .MOV.; PFS Art Publisher Image (ART) is a raster graphics file format used for storing digital images. It was developed by Progressive Networks for use in their Progressive FreeStyle Art Publisher software. ART files are compressed using the run-length encoding (RLE) algorithm, which allows them to store large images in a relatively small file size. The ART format supports up to 24-bit color and is often used for storing digital photos and other images.