The double extension .mp4.mp4 often happens when a file is renamed automatically or downloaded through a script. Try renaming the file to just video.mp4 .
To give you a "detailed guide," I need to know what you are trying to do with it. Here are the three most common scenarios for a file like this: 1. If you are trying to open/view the file 5e73c93e3bfd7d7bf07cf_source.mp4.mp4
If standard players (Windows Media Player/QuickTime) fail, use VLC Media Player or MPV . These handle "broken" headers and raw streams better than most. 2. If you found this in a Game Folder (Asset Extraction) The double extension
Use AssetStudio if the file is part of a Unity .bundle or .assets pack. Here are the three most common scenarios for
Developers use hashes like 5e73c93e... to prevent people from easily browsing the story spoilers in the game files. 3. If you are trying to fix a "File Not Found" error
If this is from a downloaded mod or game, re-download the specific "Assets" or "Resources" pack, as hashed files are easily corrupted during transfer. To help you further, could you tell me:
If a program is specifically asking for this exact filename and crashing:
