Open OD File
OD is a file format used by Mascopt, a professional network optimization tool. OD files contain a request for graphs and paths used during network analysis processes studying and manipulating said graph. OD files are considered data files. The OD extension is directly related to other extensions such as MGL and MGX by the acronyms Mascopt Graphics Library and Mascopt Extended Graphics which are used for data input and output.
Mascopt: To open the OD files you need to have installed the Mascopt software, developed by the French company INRIA which is an open source application written in Java in combination with the XML data standard and available for Windows, MAC and Linux .