Creating a fresh wallet from a .key file ?

[erpbridge]

I have been using the old Multibit classic on my PC and I found that whenever I import a .key file to my multibit client it basically links my wallet with the .key address and an address which was generated when the wallet was first created and opened.

On doing any transaction, the money gets sent to either of the addresses even when I don't have the key to the other address. Is there any way to create or open a brand new wallet from just a .key file ?