Don't push "OK" button before you find the file.
Can't you see the folder typing "/private/var/" in "go to folder" menu in Finder?
Thanks for the response 19752. I was using Find to find the folder. I located the file using your way. When I open the file, there is no line 1465118. It stops at line 1048575.
You can copy/paste from that dialog box
cp <<paste>> ~/Desktop/Group.fmpxmlresult.xml
Then you can clean that XML up like:
tidy -i -xml -wrap 0 ~/Desktop/Group.fmpxmlresult.xml > ~/Desktop/Group.fmpxmlresult.tidy.xml