Can someone help me with this technical stuff?

Can someone please help me?
I downloaded the file on the site and I had to open it with winzip, because I had nothing else. So I did, but now it is a winzip file and i don't know how to turn it into a NDS file.
Some intructions would be very helpful :)

Your meant to open the file with winrar or 7zip.All you done by the sounds of it, is double compress it.The games here are .rar format.Try googling the mentioned programs and you can download them for free, winrar might bug you to purchase but the demo last forever, while 7zip is just plain free and won't bug you.

extract it maybe?

Replying to #3

She just said she used winzip, which isn't no help here.

Can't you extract those files too?

Replying to #5

She JUST said she tried winzip,which is an older program which can't handle rar or 7zip files.By saying "just extract it" doesn't help, she needs more info.Ok, now to make sure this doesn't get more confusing, get the suggested programs I said before (ethier one will do) and extract the file from the winzip file (you can use winzip to do this, but you no longer need it) and then again to get the .nds file.

Instead of pointing the user to google, just point them to the Tutorial which is also linked to in the site introduction page about RAR files.
https://www.romulation.org/forum/index.php?topic=3880.0