Atmosphere VS NX-Shell

Knock yourself out: https://github.com/Atmosphere-NX/Atmosphere/releases

The Nintendo Switch is a great console for sideloading. There are numerous ports of PC titles like Quake and Half-Life, as well as a library of Homebrew games and modding tools. If you've got an original Nintendo Switch there's practically no excuse not to crack it, unless you intend to play online.

Same goes for the 3DS, too. You can now play Virtual Boy games using the built-in 3D screen, which enables preservation of Nintendo's darkest age (with or without their approval). I have soft-modded versions of both the Switch and 3DS, and recommend it to anyone that wants that experience.

If you want an Xbox or Playstation console, buy the SOC from AMD. They sell them on Alibaba and get the same support Microsoft and Sony recieve (read: dogshit). Most people would agree that it's wiser to not use console hardware for PC software when you can build a superior machine for a lower price. But hey, if you wanna waste time and money be my guest.

Official Atmosphere documentation on Exosphere states:

SOLVED, I needed to use this pre-release version of atmosphere. https://github.com/Atmosphere-NX/Atmosphere/releases/tag/1.5.4

This might be a good source https://github.com/Atmosphere-NX/Atmosphere/releases

Not yet, but there is an Atmosphere feature request for it.

You might be able to access the save files using a Switch file manager like NX-Shell.

I recommend using a file manager like NX-Shell though since you can do all this directly from your switch without using a PC or phone. You can download it from homebrew store or https://github.com/joel16/NX-Shell/releases.

In addition to what others have said, if you really have no other options: https://github.com/joel16/NX-Shell

So I'll repeat my suggestion. Clean up the files using NX-Shell. Presumably you don't have a Windows PC handy or else you would have already fixed it, so there's a solution you can do right on the Switch itself.

NX Shell says it supports extracting zip archives - https://github.com/joel16/NX-Shell/releases

Hell yeah there is bud! You've got a few options, you could use NX-Shell which is a file browser found here or can be found on the homebrew App Store, second you could use Hekate and put your system into USB mode then connect to the system with your computer via USB although it sounds like you want to avoid your PC so the first option may be best.