Blend file opens in 32 bit but not 64 bit? I have a blend file I made with Blender 64bits

I recently installed an addon called Blender Sensei Format, I didn't understand the UI and it appeared to append my file I think.

I uninstalled the addon and the file still will not load, it just crashes Blender, I uninstalled blender and deleted all the data and even the registry files, however the file will still not load so i tried the same file on my 32 bit windows tablet and it opens with no issues.

I then downloaded the 32 bit version of Blender to my desktop PC and the file opened again with no issues but still will not load on 64 bits version.

How can i fix this? It's driving me mad
Have you unchecked the "load UI" option box before opening the file? I have had occasional problems opening files created with different versions that were ignored when I used the current user interface rather than the one embedded in the .blend file.

I tried the sensei interface and went back within a couple of hours... Too much of a change from what I was accustomed to using to adapt.

Phred