Extract words from subtitle files

The wordbook has a function to extract words from SRT (SubRip file format).
The extracted words will be organized by each file.
I named each organized unit "binders".
Here is how to extract words:

1. Go to Binders.
2. Click "Folder Plus Button" create_new_folderthat is placed on the right side of the header toolbar.
3. Click the "Select SRT File" button.
4. Change Name input if you need. By default, the selected file name will be given.
5. Click "Create Binder".
6. Wait for the extracting process to be completed.