deleting files

[Wil L]

Hi, I just installed and started using Gnucash 2.4.11 on Mac OX 10.7.4
After the installation, I created a couple of files for testing, now
I want to delete these files (data files),
but I can't seem to find a way to delete them.
If I delete the data files from Mac finder window, the file names
still show up under Gnucash File->

Also, I would like to move my data file to a different directory on
my Mac, how do I do this?

Wil Lemmer