WinRar should be able to open most archives.
What kinds of files did you download, the ones you get the error on ?
Maybe the file didn't download completely ?
Do you have a concrete example ? Don't link anything though, just name site and download so I can find it.
I get the error message from the package files, I don't think the files did download correctly but I couldn't be sure. I didn't add a link but I added some photos of what happens after I try to download an item from TSR. Hopefully you can see them and they could be of help, if not I just tried downloading any type of itm off of TSR, I'll download and item but when I try to open it it shows me the error not it reads exactly
"C:\Users\nicol_000\Downloads\Nightcrawler AF Hair NAOMI.package
The archive is either in unknown format or damaged"
my only option for the message is OK, I became frustrated with the website and stopped trying.
You don't need to open the package file.
Just put that in your mods folder.
Just unzip the archive ones and once you have the package file, copy/paste that in your mods folder.
