This file needs to be extracted to the C: drive on each person's computer. The new file will need to overwrite the file with the same name in their "C:\Planit" folder.
The file is located here:
You would need local administrator privileges to be able to do this. Not everyone has those.
\\cityfs\Shared\DATA\Information Technology\PlanIT_2018\PlanIt.zip
If people double click it they should make it look like the attached image, ie, extract the included file to
C:\PlanIt
It should overwrite the file in that folder. Their existing shortcuts will continue to work or they can click on the PlanIT database file in the "c:\PlanIT" folder.
The new file will also be called "PlanIt2000.mdb"