Trados Studio 2021 and the latest version of
Trados Studio 2019 (you can check if the application is up to date on your end
here) support
VTT,
SUB and
SBV files natively. If you are using an older version of
Trados Studio 2019, you may need to install the
Studio Subtitling plugin as described in this
RWS Community page.
To translate
STL files, you need to install the
STL filetype from the RWS Appstore:
https://appstore.sdl.com/language/app/stl-filetype/981/IMPORTANT NOTE:
Please be aware that there are different types of
STL files. Only
Spruce STL files are supported with the file types mentioned above. If your file is not a
Spruce STL, you can use a subtitle editor software to save your file as
Spruce STL, or another subtitle format supported in
Trados Studio.