macOS 10.15 or later no longer supports 32-bit applications and 32-bit mode, but if you have macOS 10.14 or earlier, Application Wizard will let you easily force 64-bit and 32-bit capable applications to run in 32-bit mode, either always or just once.
Please note that the latest Application Wizard version running on macOS 10.14 is version 4.4. To download it, visit the Application Wizard download web page, scroll down to Legacy Versions, and click the ”Download version 4.4” button.
Open the Application Wizard pane in System Preferences and click Applications.
Click the Add (+) button at the bottom of the list, browse and select the application, and click Add.
Select the “Open in 32-bit mode” option. When launched from the Open menu the application will always run in 32-bit mode.
Select the application in the Open menu.
Press the Control key: if the application can open in 32-bit mode, its icon will switch to the 32-bit badge and Application Wizard will open it in 32-bit mode.