In this case, please download or copy the file FMP12 again. When the file is incomplete, it is not possible to open it correctly. Check if the file is complete - Sometimes it happens that the FMP12 file was not copied completely from the external Flash memory, or downloaded from the Internet.Check that the system has the necessary resources to run the FileMaker Pro application and open the FMP12 file.Check if the icon is an element of the correct file but not only a shortcut to the location where the FMP12 file no longer exists.Check if you, as the operating system user, have appropriate permissions to work with the file FMP12.

Most often it is disinfection or deletion of an infected file. In this case, scan the FMP12 file and take the actions recommended by the antivirus program installed on the system.

Check if the FMP12 file is not infected - When the file FMP12 is infected with a virus or malware, it probably will not be able to be opened correctly.

You should then find out what is the reason of the problem. Sometimes it happens that despite having the right application and the correct configuration, there are still problems with opening the FMP12 files.

Check out other possible problems related to FMP12 files. Remember! Manually editing the system registry is only recommended for advanced users, and changes made to it without proper knowledge may result in damage to the system.

Finally, select the 'Always use the selected program to open FMP12 files' option and confirm the whole operation.

Click 'Find more applications on this PC' and indicate the installation location of the appropriate program.

Right click on the unknown FMP12 file you want to open.

The second way is simpler and definitely recommended for less advanced users. This can be done in two ways - one is to manually edit the Windows Registry and HKEY_CLASSES_ROOT keys. If the user already has one of the applications installed, the next step will be to associate it with the file extension FMP12. Associate FileMaker Pro with the FMP12 file extension

Fmp12 file format