You may need to open SRT Files in Windows 11/10, to use it with a video player so that the subtitles will play along with the movie.

With the faster playback rate, to ensure I’m able to pick up all the dialogue, I load subtitles into VLC as .srt files. I have a Plex server that allows me to stream video files from my computer ...

To use SRT or subtitle files in the Movies & TV app in Windows 11/10, you must first play the movie or video. Then, hover your mouse over the bottom left side and click on the speech bubble.

That being said, Twitter can reject your file with a less-than-helpful message of: "There was a problem uploading your subtitle (.srt) file." So it's important, at least when you first start, to ...