How can I change the language displayed in Audacity?
The language Audacity uses on first run is determined by the language the operating system uses. To change the current Audacity language, go to the Interface tab of Preferences, choose the specific language required from the "Language" box, then click OK.
If Audacity is already running in an unfamiliar language, you can still navigate the menus sequentially to change the language, or change it in the audacity.cfg settings file. For instructions, please see Changing the current language on the Audacity Wiki.