How to connect the existing database?
Open the window "Select Database".
This window appears when the program is launched, or if the program has been running already, you can open it by selecting item from the main Menu -> Databases -> Select Database
Specify the database file to be included in the standard file selection dialog box. It has an extension "*.sdf".
After that, a new row will appear in the database list. Select it and click "Start MaxProfit"