I tried to open a new wallet in Electrum and selected the wallet document from Armory, but it's unable to read it.
This doesn't work because both wallets use completely different formats.
If you want to move your coins into an electrum wallet, do the following:
- Create a new electrum wallet and write down the mnemonic code (12 words). These are the key to your funds.
- Make sure you have backed them up properly (not digitally!)
- Export the private key of the address which received funds out of armory by opening the 'wallet properties' -> 'backup this wallet' -> 'export key list'
- Create a second (temporary) electrum wallet by choosing to import a private key. Use the private key of armory.
- Send funds from your temporary electrum wallet (containing only this one private key) to your other electrum wallet (which will be your new 'standard' wallet)
Afterwards your funds will be located in your new electrum wallet.