I was tech dumb...still am. I was mining Doge and Vert....yes i have wallet.dat. So will any wallet do and just replace the file? Any recommended wallets for the 2?
Download the wallets for each one. Run them and let them sync. When they are done syncing, close them down and swap out the wallet.dat files.
The location for the wallets looks something like this:
C:\USERS\kabizzle4rizzle\AppData\Roaming\Whatevercoin
IMPORTANT STEP: Open windows explorer. Click 'view' at top of window, make sure that 'HIDDEN' has a check mark in it. This will allow you to see the AppData folder.
It is possible that the wallets you download will be incompatible with their respective wallet.dat files. If that is the case you can try downloading older versions of the wallet programs.
Good luck!
EDIT: You said you only have one wallet.dat file. There is no way to tell which coin it is for by just the filename. I would try BTC, Doge and Vert first. Download those wallets and try swapping out.