https://forums.autodesk.com/t5/revit-architecture-forum/revit-2014-file-won-t-open-error-message/m-p/5781260#M330517 Yes, there is a backup file but it won't open either.<BR /><BR /><BR />Sent from my Verizon Wireless 4G LTE smartphone Fri, 21 Aug 2015 04:18:25 GMT Anonymous 2015-08-21T04:18:25Z