Nestopia language file
File type: Various data file
A .nlg file is a language or localization file used by the Nestopia NES/Famicom emulator.
It contains the translated text and other language data that Nestopia uses for its user interface.
File type category:
Various data file
Date updated: October 12, 2026
The Nestopia language file belongs to Nestopia, a Nintendo Entertainment System (NES) and Famicom emulator developed by Martin Freij. The file stores language localization data for the emulator, and an example filename is english.nlg.
Nestopia is available for Microsoft Windows. The .nlg file is a support file used by the emulator rather than a game ROM or saved game, and it normally remains with Nestopia's other program files so the corresponding language can be selected in the application.
Open the file with Nestopia on Microsoft Windows to use its language data. If you only need to inspect the contents, a plain-text editor may be able to display the file, although editing it can prevent Nestopia from loading the language correctly.
A .nlg file is not normally converted to another file format. To use a different language, select another language file in Nestopia; changing the file to a general text format would not create a usable Nestopia language file.
Software applications that handle other tasks involving nlg files:
Microsoft Windows
Language
