How can I find all *old* Keynote presentations on my computer?
A Smart Folder is probably the easiest way to find all your old Keynote files. To create one:


Open a Finder Window
Click "File" > "New Smart Folder"
In the search box, type "key" and then select "Keynote Document" from the dropdown
If you like, you can add a last modified filer by clicking the "+" sign under the search box.
If you want to save the Smart folder, click the "Save" button