When working from a file, Sysmac keeps a record of the projects that have recently been opened. This is intended to allow the user to easily locate and open files they have edited in the past.
The recent project list is updated every time a project is opened, and saved to a text file when Sysmac is closed. The text file can be found at the directory below:
C:\Users\WINDOWS_USERNAME\AppData\Local\OMRON_Corporation\SysmacStudio\RecentUsingProjects.txt