5e73c93e3bfd7d7bf07cf_source.mp4.mp4 -

Ensure the file is in the correct subdirectory (usually Resources/Videos or Data/Streaming ).

Use AssetStudio if the file is part of a Unity .bundle or .assets pack. 5e73c93e3bfd7d7bf07cf_source.mp4.mp4

What is your end goal (watching it, editing it, or fixing a software error)? Ensure the file is in the correct subdirectory

If this file was found in a folder like StreamingAssets or a cache directory, it is likely a cutscene or a "Live2D" animated background. 5e73c93e3bfd7d7bf07cf_source.mp4.mp4