: MPEG-DASH videos are split into many small files. Look for other files in the same folder with similar long alphanumeric names ending in .m4s or .dash .
: Sometimes simply adding .mp4 or .mkv to the end of the filename allows some smart video players to recognize the container, though this is less effective for dashinit files than for the actual data segments. 174E0E0FAEA80B1B130D8735B698079A_video_dashinit...
The string you provided appears to be a (MPEG-DASH) often found in browser or app cache folders. These files are not meant to be opened directly as standard video files; instead, they serve as "blueprints" that tell a video player how to load and sync different parts of a video stream. How to Use or "Fix" This File : MPEG-DASH videos are split into many small files
: Standard players might fail. Try opening the file with VLC Media Player or MPC-HC, as they have better built-in support for streaming initialization segments. The string you provided appears to be a