So I want to start using Electrum. Do I use it to access my Armory wallet or do I have to create a new wallet with Electrum and make a transaction from Armory to it?

Also, if I (for some reason) lost my wallet but know the password, could I retrieve it or would it be gone? I noticed the app creates a file that stores the wallet locally. So, if that file is gone forever does it mean my satoshis are gone forever too, or is there a way to get my satoshis back in case that file went missing?