About .SBV File Format
To work with SBV files in Anycount, let’s get to know a little more about this format.
The SBV is the subtitle format is used by YouTube to display closed captions in uploaded videos. It is a plaintext farmot, similar to SRT and files can be opened and edited by any text editior. Specialized subtitle editors, like Subtitle Workshop, can also edit SBV files
Link:
Subtitle Workshop