Export multiple slides of audio (closed captioning" text into one document)

I'd like to export multiple slides of audio (closed captioning" text into one document.

I understand that I'd need to export them and open them in Notepad, but if I have 75 slides, exporting one by one and then opening/copying and pasting is a daunting task. It would be so much better to go to the Media Library, select all or select specific slides, THEN export those selected or ALL into the VTT file. From there I can open the VTT file in Notepad. 

I understand the reasoning for select slides, but I also understand the need for the entire "script" for a whole training, too. 

It would also be nice to have an option to include the slide numbers (or not) on the export option.