1_4970211338333716712.mp4

: Videos sent via Telegram are often compressed to save data unless the sender specifically chose the "Send as File" option to preserve the original quality and filename. How to Manage Telegram Videos

The file appears to be a video file downloaded from Telegram , as it follows the platform's specific internal naming convention. 1_4970211338333716712.mp4

Telegram Desktop (x64, Windows 10) not showing media, ... - GitHub : Videos sent via Telegram are often compressed

: This naming style is standard when using the "Save to Downloads" or "Save File As..." feature in the Telegram Desktop or mobile apps. Windows 10) not showing media

: If you still have the app open, you can right-click the video in your chat and select "Show in Folder" to find where it is stored on your device.