Embrilliance Thumbnailer, Embroidery Software for Mac & PC

Is this the software I need to open desings on my computers

I have macos big sur and have it on icons.. i went to help on embrillance and downloaded a file that i was told would fix it. nope?

how many designs can be stored on this softwear or can be used. I have a very, very very ,large collection of deisgns

Can I use this on a Bernina 790 plus