Asx630.mp4 -

: Open the file in a Hex Editor to verify the file signature (the "magic bytes" at the start). For an .mp4 , this should typically start with 00 00 00 ... ftypisom .

Based on similar file-naming conventions, this query likely refers to one of the following scenarios: ASX630.mp4

If you possess this file and are attempting to analyze its contents, follow these forensic best practices: : Open the file in a Hex Editor