If watching on a phone, apps like Get Subtitles can automatically scan your device for movies and find the matching file for you.
Rename the subtitle file to match the movie file exactly (except for the extension). subtitle What.Happened.to.Monday.2017.HDRip.Xvi...
If you'd like, I can help you find a or explain how to use a different media player ! 2026 Best 10 Subtitle App for Android/iPhone If watching on a phone, apps like Get
Ensure the file you download is .srt (the most common format) and in your preferred language. 2. How to Load the Subtitles If watching on a phone