Cover Flow Images Blurry--numbers and pages files only

Question

I was using the Cover Flow view in Finder today, and noted that the images associated with Apple software files--pages and numbers were blurry.  pdfs, Word or Excel files show up crisp and clear, as do images.
This ocurs on both my iMac and MacBook.  Is there a preference setting somewhere that needs to be set to get the file "images" to show up sharp? (I had a similar problem with .jpgs created in Photoshop, and learned there was a setting in PS to not save thumbnail images that solved the sharpness problem there.)
Thank you.
dcwarner
wilmington, de

Answer 1

I use Creative Cloud storage. Want them there. At this point, I can't do that at all. It won't open anything not saved there.
In the past people have reported problems with saving Numbers 3 documents to cloud services other than iCloud. For example, see this thread. For a while even Dropbox didn't work well, though Dropbox has since fixed that. I think the problems have something to do with the fact that a Numbers document isn't a "file"; it's actually a collection of files organized in a folder that looks like one file in Finder.  I understand that the Numbers 3 format is optimized for fast cross-platform sync; in that respect, it is certainly a big step forward from previous versions.  Some cloud services seem to trouble with the format, though, and that may be what you are seeing.
SG