Sort:  

if you have private keys then you can use one and switch if needed but if you have some funny wallet file and a password.. seems backup is a must.

i suggest to use electrum as it has full keys control

Coin Marketplace

STEEM 0.06
TRX 0.28
JST 0.048
BTC 71260.16
ETH 2070.74
USDT 1.00
SBD 0.51