To use screen data for DOS, which was created in GP-PRO2 or GP-PRO3, in GP-Pro EX, convert the screen data for DOS into a GP-PRO/PB3 project file first. If you convert the converted project file with the GP-Pro EX's Project Converter, the display language settings will be set to [English].
After converting screen data for DOS to a GP-PRO/PB3 project file, open the project file in GP-PRO/PB3 once. By doing so, the file can be converted properly into a GP-Pro EX project file.