How to restore Outlook from files retrieved from a Mac Air flash drive?

My wife spilled water on our Mac Air. Apple store said it was destroyed. I was able to remove flash drive and get all the files for the Mac. After let it dry out for a week I was able to get it to power up. But it would not boot. Apple walked me through reinstalling system software but I need to erase everything on the flash drive. I now boots. I set up the system to match what it was before the crash. Now I need to restore Outlook especially the calendar. How do I do that with all the files retrieved from the flash drive.