Restoring after loss of hard disk.

[Andrew Greig]

Hi ,
Some time ago my hard disk died.  I received some help from the list and
nearly got it sorted.  I have found my data, to 11 Dec 2005, on a USB
key I sometimes use.  The last file looks like this:
Andrew_Greig.20050805231538.xac.20050831171718.xac.20051118160229.xac.20051129065021.xac.20051211164637.xac

Apparently this is a copy of a copy of a ... archive file.

I am sure that I can fire up gnucash from this, but how do I get back to
a cleaner setup, please?  I started the account on 8th may 2005, and
this file was saved in Dec 2005.  What should my file name look like?
and is it just a matter of renaming it?

Thanks
Andrew Greig