.AOM File Extension
File TypeAfter Effects Output Module
What is a AOM file?
Video output settings file created by After Effects, a motion graphics and video effects application; saves video output options such as the file format, color profile, and compression; used for processing rendered video into a final output format; also enables output module settings to be reused.
NOTE: When video is rendered, you can apply multiple output modules in order to generate output video in multiple formats.