Can any one tell me what the file is called / extension that holds profile information?
Vixen crashed last night and all my elements and controllers have disappeared from my Christmas profile.
Graeme, the profile is not a single file - it's the entire collection of files in the ....\Documents\Vixen 3 directory (by default). It's a good idea to backup that directory regularly.
One thing you can try is deleting the file
It sometimes gets corrupted, and when it does, strange things can happen. Deleting it results in a clean re-build of the file - the only thing you lose are your window sizes and positions - easy to fix if necessary.
I'm sure you have the folder but reinstalling Vixen might have wiped/reset it for all I know - I'm NOT going to test whether that happens. It is just located in what I thought was a weird place. Go to Computer or This PC depending on which Windows version you have and the Documents folder should be there. The Documents folder is viewable by default when you first open File Explorer too.
The AppData folder is hidden by default. In file explorer, go to View - Options, and select "Show hidden files ....." in the View tab. You should then be able to find the TimedSequenceEditorForm.xml file. Delete it - your work could still be there, although the more you've tried, the more likely it's been overwritten.