I had some meticulously customised toolbars in Word and Excel 2011. After installing the Office 2016 preview, I found to my dismay that the toolbars had been reset to the default settings. Before I sink another significant amount of time to recreate my toolbars, does anyone know where exactly (in which files) these customisations are stored? Since I have TimeMachine backups, it would be much easier to restore the old files. It's apparently not the plist files in the Preferences folder, by the way.