The ofp file contains UML project saved in Objecteering program. Choose right tool to open or convert OFP files. You can export projects and save them to several formats. Files with ofp extension can be mainly found as Objecteering projects. Origin function plot theme file. You will probably never see a OFP file when using Origin. If you want to open a OFP theme file, place it in Function folder then load using plot window in Origin. Programs that open OFP files fall under Misc Files category. Objecteering Project file was generated by Objecteering UML Free Edition program. Apps that use OFP files are known to open certain types. Remember different programs may use OFP files for different purposes. When Windows does not recognize a filename extension, you receive a message to select an app to open OFP file. Select, download and install relevant software that can open OFP files. Right-click on the OFP file then select Open with option to associate software supporting this format. In this article we tried to explain what OFP file is and how to open, view or convert it.