Data File is Corrupt error

Hello Everyone!!My company current uses Lectora v.07, and Mzinga for our LMS. I have a quick question about an error message that is appearing when .My coworker finally finished working on her course last night, and said when she tried to save it her computer froze up on her and kicked her out of Lectora. When she went back in to open the course, she received the following error message: "Data file is corrupt or saved by a different version of this product. Some data may be lost". I've tried to open the course, but I'm getting the same message. When I click on ok, it doesn't even open the course before she made her corrections. I've tried opening the course in different saved locations, but I'm still getting the same message.Is there anything that I can do to salvage this?