What Is a TS File?
A file with the .TSfile extensionis a Video Transport Stream file used to store MPEG-2-compressed video data.
They’re often seen on DVDs in a sequence of multiple .TS files.

TypeScript is another file format that uses the .TS file extension.
M2TSandMTSfiles are similar to Video Transport Stream files explained here, but are targeted specifically at Blu-ray video files.
TypeScriptsupports that kind of TS file.
Qt Translation Source files open withQt, a software development kit.
One example isMiniTool Video Converter.
It’s best to use an offline, desktop converter if the file is large.
It’s much more convenient to use an offline converter for bigger videos.
There probably isn’t much of a need to convert TS files from the TypeScript language to something else.
However, if possible, do the conversion with the same program that opens the file.
it’s possible for you to normally find this option within aSave AsorExportmenu.
Still Can’t launch the File?
Therefore, opening one in the software linked above won’t let you use it as it was intended.
The same is true for lots of other file formats.