File extensions for DITA topics and ditamaps

The .dita file extension should be used for DITA topics, and the .ditamap extension for ditamaps.

Most DITA authoring tools allow you to save topics with .dita or .xml file extensions.

Always use the .dita file extension.

The reasons for using .dita extensions include:

Most authoring tools also allow you to save ditamap files with a .ditamap extension or a .xml extension.

Always use the .ditamap extension for all ditamap files, including bookmaps.