When you run DITA2Go with OmniHelp as the output type, DITA2Go produces additional data and control files, depending on your project settings. These files are listed in Table 19-2. All are placed in the project directory you specified for your OmniHelp project. Do not rename or edit any of these files.
In addition to the files listed in Table 19-2, when you first set up an OmniHelp project DITA2Go optionally generates a CSS file (default name ohmain.css) for topic content; see §19.4.1 Specifying CSS for topics in OmniHelp.