FAB TV Guide Editor always uses a folder where the configuration is stored in the file tvgedit.inf. The location of this folder is defined by an entry in the registry.
On 64 Bit Windows the folder is defined in:
HKLM\Software\Wow6432Node\FAB\FAB TV Programme Editor\DataDir
On 32 Bit Windows the folder is defined in:
HKLM\Software\FAB\FAB TV Programme Editor\DataDir
The folder is generally located on a file server and the path will be similar to: