: The .mp4 extension indicates it is a digital multimedia container format. MP4 files are widely compatible and can be played on almost any modern device using standard players like Windows Media Player or VLC Media Player . Where to Find and Identify the Content
To determine what the video actually shows without opening it in a suspicious way, you can check the original Telegram chat where it was received. You can also use a metadata viewer to see the creation date, which might help you remember the context of the download. Uploading and Downloading Files - Telegram APIs 1_5057983612117320136 (1).mp4
: Internal Storage > Android > data > org.telegram.messenger > files > Telegram > Telegram Video . 1_5057983612117320136 (1).mp4