ixFlashcard Addons Addons for ixFlashcard Addons are additional files and programs that are available to users to help study flashcards in other settings and to help build flashcard files. Addons: ixFlashcard Builder - This is a freely available software program for Windows 2000/XP/Vista computers that will allow the user to build complex ixFlashcard files. -- Learn more here. NOW AVAILABLE!! MS Excel ixFlashcard Builder - This is a freely available Excel file (Excel 2003 - 2007) that includes functions to import, edit and save basic ixFlashcard files. -- Learn more here. ixFlashcard Desktop - Software designed to run on Windows 2000/XP/Vista computers and laptops. It allows the user to review flashcard decks that are created for the mobile version. It will read the same ixFlashcard that can be synced with ixFlashcard Mobile on your device. -- Learn more here.