Can't open Keynote 6.1 files
I recently upgraded to Mavericks and installed Keynote 6.1. But the files that I recieve from other folks created in the new version does not open. It just says the file can't be opened.
So i try to open in the older version Keynote 5.3 which i still have on my system to make sure if its the new version file or no and I do get the error - You need a newer version of Keynote to open this presentation.
How can i fix this problem? I can try installing the new Keynote but want to make sure I can do that from Mac App Store once i delete it from my system.
Thanks for your suggestions in advance!