NLS is an acronym for National Language Support. Files that contain the .nls file extension are most commonly associated with the Microsoft Windows operating system.
The NLS files that are used by the Microsoft Windows operating system contain the language translation information that the Windows operating system uses to convert languages between different character sets. If a user's NLS files aren't configured properly, his or her operating system will be unable to properly convert languages during computer use.
The Troj/Agent-GIS software also uses the .nls file extension.
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