There's a video in Google Drive that I found with subtitles/captions, which are possible to show and hide by using a system like the one used in YouTube, but obviously if I download the video, then I don't get the subtitles/captions, just the video file. I want to download the subtitles/captions. I've tried to download the subtitles/captions by using a method of changing some things in the video file link, but it didn't work, I only get a blank page. This method comes from another forum in this webpage. Here is the method that didn't work:

When you watch a video as the picture of your screenshot, you can find a down arrow. If you click it, you can get a link as "https://......&export=download". Then, you must replace "&export=download" with "&export=timedtext&ttlang=en". "en" means "English" There are all languages(ttlang=?) below. The subtitle of google drive or youtube is "*.sbv". You can convert it into "*.srt" by
http://captionsconverter.com/
There's also another method that I've tried, but it also didn't work and I got a blank page again. Here's the other method:

it's still work in 2017 but we need to do some transformation

download links :https://doc-14-58-docs.googleusercontent.com/docs/securesc/ec3mcvnl030m9q5bok5nt1t17r6...5416414395&has h=jh4qp9ikercb7vjdll3ds54rousgclfa
There also was another method that someone mentioned, which involves using a code, but I didn't understand it and how to use it (I still don't, I'm not a programmer or a tech expert, and I'm only able to format this text by selecting whatever text I wanted to give its format and click on any of the icons above to give it the particular format that I want, but for some reason, when I am in the box for editing the text of my posts, there are some weird texts like "[QUOTE]" and "[/B]", that don't appear when the posts are published. I assume those weird texts have something to do with programming), so I couldn't use it:

I tried this and it worked :
Code:
youtube-dl https://drive.google.com/file/d/0Bxqf-PGnadp7MUhSbEJGR1J2NEU --skip-download --all-subs
So, how do I download captions/subtitles from a Google Drive video?