How?

[qingmei]

How to convert the subtitle of DVDRip (sub format) into txt or doc format?

[megamachine]

For TXT, Subtitle Workshop should be able to do that for you.

[qingmei]

When I use the subtitle workshop, it tells me that the sub file I load is bad or not valid, why?

[megamachine]

Try using SubRip to get your subtitle file.

[qingmei]

Thank you very much! You have done me a tremendous favor!!!

[megamachine]

My pleasure.