restoring backup

[Arthur Dyck]

I had a hard drive failure and am now trying to reload my gnucash files.  I am 
using 2.0.1 on kubuntu edgy.

When I go to my saved files. I have a series of .log and .xac files which look 
like this:  2007accounts.20070317100305.log and 
2007accounts.20070317100305.xac.  When I try to open the .xac file I get the 
following error message: The file type of 
file /home/arthur/Documents/gnucash/2007/2007 accounts.20070317100302.xac is 
unknown.  It also appears that all of my .log and .xac files are empty.

I also have some backup files from last year which look very differently:  
translog.20050605133832.log.20050611105017.xac.20050617130343.xac.20051028111030.xac.20051223081513.xac.20060105112611.  
These files open just fine.

Can anyone tell me what is happening here?

Arthur