Importing or spending paper wallets

[20kevin20]

Hello everyone,

I would like to start trading in the following days because of Brexit and I'm going to try to make some profit. So let's say I got like >50 different Altcoins printed out on a paper..

The question is, how do I exactly spend that money in general? Can I import it in some way through the downloadable wallets or? What are the ways you know you can import an address in a downloadable wallet? If something happens, I'd like to act quickly.

Thanks for the help!!