if sent an email with an excel google sheet and i choose the option because it was shared will the document automatically save in my drive or do i need to save it there?

Thanks for explaining. I was sent the sheets via gmail. How do I organize them and store them if I dont put them in my google drive? Do I keep them stored in gmail and organize them there? Do I keep them on my google drive in a shared location and orgnaize them there? There are over 20 shared sheets to start with. If I place them on my google drive and they edit the sheets will the updates be reflected on the same sheets I placed in my google drive? I am not sure how to organize the sheets for easy access once I choose share from the gmail google sheet. Does it stay in my gmail account and I access it from there? Thanks in advance