Is it possible to create different versions of the same project without having to save the entire project with a different name every time?

For instance, if i have a file called Main.aspx, is there a way to have Main.aspx version 1 and Main.aspx version 2?

Thank you!

Like Luis said, this can be achieved through source control functionality.

Take advantage of the branching capabilities if you want separate versions of the same project/file(s).