Keynote will not open file I created in keynote
Created the file in 6.5.2 yesterday. Keynote will not open it from 6.5.2. will not open from 5.1.1. On advise from this discussion list Zipped it, sent to myself. Uncompress - will not open. Sent to different email address - will not open. Tried everything in this forum. Went to app store, would not let me purchase because current version is latest. Think I purchased some version for Iphone and Ipad in desperation - doesn't seem to have been downloaded but was charged for it. Really really frustrated with the new Apple - where nothing works. Please help.
iMac, OS X Yosemite (10.10.2)