Click File > Save as and choose a location to save your file.
In the Save as type list, select Visio 2003-2010 drawing.
If the document contains features that aren’t available in earlier versions of Visio, the Compatibility Checker appears and shows a list of potential problems. The Compatibility Checker runs when you save the document in the earlier format, and you can also run it at any time by clicking File > Info > Check Compatibility.
In order to save all your drawings in the earlier file format, set Visio to do so automatically:
Click File > Options > Save.
In the list next to Save files in this format, select Visio 2003-2010 Document.