I uploaded Blender 2.58 to my computer and modeled a mansion, saved the file, and titled it, “Mymansion”. Then I exited out of the program. I opened the program again, hit open, and hit mymansion toedit it, but when I hit the file, the screen closed and went to the default and a little box showed up on the corner of the screen that read,
"ERROR: File Format is not supported in file:“C:/Mymansion.blend”
Any suggestions on how this can be fixed?