Click the "Select File" button above, and choose your NLS file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert NLS to another file type
To convert NLS Language files to another format, you need Microsoft Windows or other System software.
Convert a file to NLS
To convert other file formats to the "National Language Support" file type, you need software like Microsoft Windows or a similar tool.
About NLS files
The .NLS file extension primarily stands for National Language Support. These system files are heavily utilized by Microsoft Windows, Microsoft SQL Server, and Oracle Forms. They contain critical localization data, including character encoding mappings, code pages, translation rules, and keyboard layouts. A secondary, completely unrelated use for the .NLS extension is as a source code file for NetLogo, a multi-agent programmable modeling environment. Additionally, the Java game Lilith's Throne uses .NLS for game save data. The main disadvantage of system .NLS files is that they are closed, proprietary binary formats. They are strictly designed to be read by the operating system or database engine, making them completely unreadable to standard text editors or document viewers. Users often try to convert these files to CSV or TXT to inspect the character maps or database sorting rules. However, standard online converters fail to process them because they lack the specific parsing logic required for Microsoft's proprietary binary structures. Because this file format is difficult to open or convert, often only the original software or specialized developer tools can properly read the data. If our analysis detects that your file is actually a plain text NetLogo script or contains extractable strings, viewing or partial conversion may still be possible.
Convert.Guru analyzes your NLS file, detects the exact format, and lets you read the text inside.
If you want to convert NLS file to JS, TS, PY, JAVA, CPP, C, CS, PHP, RB, GO, RS or SWIFT, you can use Microsoft Windows or similar software from the "Language Localization Data" category. In the File menu, look for Save As… or Export….
To convert SH, PY, KT, PS1, SWIFT, LUA, PL, JAVA, SCALA, JS, VBS or TS files to NLS, try Microsoft Windows or another comparable tool in the "Language Localization Data" category.
The NLS Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our NLS converter.