Q: Find outlook temp files

Try posting in Microsoft's Office for Mac forum

http://answers.microsoft.com/en-us/mac

Use EasyFind to search:

https://itunes.apple.com/nl/app/easyfind/id411673888?mt=12

Users/YourUserName/Library/Group Containers/UBF8T346G9.Office/Outlook/Outlook 15 Profiles is the 2016 location. Hold down the Alt key while clicking on the Go menu and choosing Library to make your user Library folder visible.