When you browse presentations on Slideshare.net, you sometimes see a Download button that can only download the slide for offline view via Slideshare only if the author has enabled downloading. Well that doesn’t work for me. To download presentations as ppt or google slides, go to the link below and copy paste the url of the presentation you want.
It will ask you to verify that you’re not a bot by typing a security code and Boom! Click on “Download in new tab” to get the file.