When in Orgranisations and Districs form trying to produce OD XML file, user is shown error message: ORA-20001: file could not be opened as requested
File is actually produced and it sits in the system. Locate file stored in the server by given path to export folder. You can also find path of directory in Directories form. Then just in case make a copy of this file, then delete file, go back to Exor and try to reproduce the OD XML file. Error message should vanish.