This is the most telling part. The .avi extension is a multimedia container format introduced by Microsoft. The "001" suggests it is either the first in a series of clips or a split archive (where a large video file is broken into smaller parts like .001, .002, etc.). Common Contexts for This String
If you have the .001avi file and it won't play, it might be a split file. You may need a tool like 7-Zip to "combine" it with other parts (002, 003) to recreate the original video. cocoasoftnet cost001 sticky 001avi
Note: Embedded sticky overlays are often burned into the video stream, so conversion is safe. This is the most telling part