Cannot open Numbers file saved in iCloud Drive on Mac
I get the following error "The file “XXXXXXX.numbers” couldn’t be opened." whenever I attempt to open an iWork file stored in my iCloud drive from my 2011 iMac. I'm running OS X Yosemite and the latest version of iWork (Pages 5.5.3, Numbers 3.5.3, Keynote 6.5.3). The only way I can access any of my files in my iCloud drive is to sign on to iCloud.com. What is the purpose of storing files in iCloud drive if it cannot be accessed from my iMac? I have no problems opening it from my iPhone 5 or iPad mini 3.
iMac (27-inch Mid 2011), OS X Yosemite (10.10.3), 16 GB 1333 MHz DDR3