Generally, yes. The MKV format itself is just a container. However, as with any file from the internet, only open it if you trust the source or the Telegram channel you grabbed it from. Name of downloaded files differs from original file name
On mobile, instead of just downloading, tap the three dots and select "Save to Gallery" . This often triggers the phone to sort the video into your photos app where you can see a thumbnail preview.
Have you ever dug through your "Downloads" folder and found a file named something like ? It looks like a secret code or a glitch, but it’s actually a very common occurrence for power users of messaging apps like Telegram . What Is This File? AgADigAD904IVg.mkv
Blog Post Draft: The Case of the Missing Filename: Decoding Your Telegram Downloads
You can forward files to a Telegram Renamer Bot before downloading them to give them a recognizable name. Generally, yes
When someone uploads a video directly to a chat without selecting "Send as File," or if the original metadata is stripped, Telegram assigns its own internal ID as the filename. This ensures the file is unique on their servers, even if it makes it impossible for you to tell what’s inside without clicking play. How to Deal with "Mystery" MKVs
If your downloads folder is becoming a graveyard of alphanumeric soup, here are three ways to take control: Name of downloaded files differs from original file
Since "AgADigAD904IVg.mkv" is a generic identifier, a blog post about it should focus on the and how to manage them.