The XML file for each manual has an associated OMF file. The OMF file contains information about the manual that is used by the Help browser. OMF files have a .omf extension.
When you install an application, the installation process installs an OMF file to a directory of OMF files. If a Help document has an associated OMF file in an OMF file directory, the Help document is displayed in the Help browser.
OMF files contain information about Help documents such as the following: