Your link is wrong, it has to be changed from this:
https://www.dropbox.com/s/kevn0e68mjbb5l5/packneu.zip?dl=1
To this:
https://www.dropbox.com/s/kevn0e68mjbb5l5/packneu.zip?raw=1
it makes the downloading to direct download to your server
But unfortunately it is not enough, it doesn't work for...
I'm trying to download version 6.4.0 but it won't let me. I click the 6.4.0 version and it just sends me back to the page. I can only download the latest version.