HI all,I would like to export some data that I used in my custom module, of course, data from other modules should be also accessible. After that, I would like to output it in .txt format that in certain style (using Qweb I guess?).

I don't know where to start even after searching similar question. Some answer says "change report_type="qweb-pdf"to report_type="qweb-html" will do" but its not work for me. Or like this one "https://www.odoo.com/forum/help-1/question/is-it-possible-to-make-a-file-in-txt-format-123310", but I can't fully understand the URL part, I tried to do it but nothing happen. 

Can someone tell me whats the key to do it and how to do it in details? Any hint will be useful. Very appreciated!