The 4DD file extension relates to the 4D database software. It is used for its data files. To open 4DD files, use 4D SQL. 4DD database data files probably cannot convert to other formats.
There coul...
The 4DD file extension relates to the 4D database software. It is used for its data files. To open 4DD files, use 4D SQL. 4DD database data files probably cannot convert to other formats.
There could be multiple reasons why your system does not support the 4DD file extension. Your system may not have an installed program that supports 4DD files. To resolve this, first verify 4th Dimension is installed. To find it, use your system search engine and enter the program name.
If 4th Dimension is installed but not set as the default program, right-click the 4DD file. Select “Open with” from the menu. Choose the 4th Dimension program. Check the box to always use it for 4DD files. This will set 4th Dimension as the default program for 4DD files.
The main issue with 4DD files is incorrect associations with programs. This causes 4DD files to open in unusual applications or have no assigned program. To fix this, double-click the 4DD file to see if your system has a proper program association to open it. If not, install 4th Dimension. The system should then automatically associate 4DD files with it to open properly.
