Have you had this experience. I wonder if you can help.

I cannot open my project at all it just says. An error  occured while loading the project. Then another message comes up. There is an error in XML  document. When I click on OK it just does nothing. Is this something serious or can I rectify it.  I don't even know what I did. If you can help I will be so grateful.   thanks so much.

Kind regards

Valerie