When you have multiple subtitle tracks, make sure to right-click on the required subtitle track header on the “Edit” page timeline.Please keep in mind the below important points while exporting your subtitles: srt file back into Resolve to verify its contents. srt file using a notepad and check its contents. Your subtitle file will be exported as a “.srt” file. (Or you could choose your required file formats like “.vtt”, “.ttml”, “.dfxp”, etc.) Select “.srt” for the “Save as Type” file format for your subtitle file.An “Export Subtitle” window will pop up.(You can also click on the “File” > “Export” > “Subtitle”.) Click on the “Export Subtitle” option.
Under the “Edit” page, right-click on the subtitle track header.If you have finished the captioning (subtitling) work while you are on the “Edit” page and you need only the subtitle and not the video, then do the following: How to Export Only the Subtitle in DaVinci Resolve Quickly?