When an Interactive Reporting document is opened in Unicode-enabled Interactive Reporting, the Interactive Reporting document file is converted from the old format to the new, and the language is determined based on the document code page. In certain locales (for example, most of the European languages) the language cannot be determined based on the code page from the Interactive Reporting document file. In this case, the user may be prompted to select the correct language for the document. When a new Interactive Reporting document file is created, Interactive Reporting selects the language based on the user locale.language set in Windows unless the user selects another locale/language.