.DDX File Extension
File TypeAlpha Five Data Dictionary Index File
File format categories include Binary, Text, XML, and Zip. The format of this file type has not been determined.
What is a DDX file?
Index file created by Alpha Five, a Web, desktop, and mobile application IDE; contains an index of the table dictionary, which consists of a .DDD, .DDM, and DDX file; used by Alpha to locate a specific element such as a field rule or form name.
For every table you create in Alpha Five, a DDM, DDD, and DDX file will be created. These files make up the table data dictionary for a DBF file. The dictionary stores saved utility settings, layouts, and queries. It's referenced by Alpha Five to expand the capabilities of the DBF file. DDX files should be kept with the DDD and DDM Data Dictionary files in order for Alpha to find all of the elements and their pieces.
NOTE: In 2013, Alpha Five became Alpha Anywhere.
[Name of your table].ddx - When a table is created, the DDX file will be created with the same name as your table.