I am not a geek, so computer stuff is not easy for me.

My problem is that I am not able to open wallet.dat in bitcoin client.

I ran Ubuntu from USB drive. I downloaded bitcoin client for Linux. Then I opened .bitcoin folder, and I tried to open wallet.dat and got the message:

Could not display “/home/ubuntu/.bitcoin/wallet.dat”
The file is of an unknown type.

I am sure I am missing something. What could that be?
I appreciate your help.

delta