The File Extensions Database

.NSL File Extension

  • Developer by: Nullsoft
  • Category: Developer Files
  • Format: Text

What is an .NSL file?

.NSL is nsL Script

An NSL file is a text file written in nsLanguage (nsL), a high-level language used to write Nullsoft Scriptable Install System (NSIS) installation wizards. It contains nsL code used to write and build NSIS installers.

NSIS (Nullsoft Scriptable Install System) script is a language used for declaring the logic and tasks for Windows software installers. The nsL Assembler for NSIS (with NSIS installed) is used to translate the NSL file into .NSI script for compiling into software installers.

Programs that open nsL Script
File Viewer Plus
nsL Assembler for NSIS

How to solve problems with NSL files

  • Associate the NSL file extension with the correct application. On :
    Windows: Right click on any NSL file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.NSL files". Mac: Right click (or Ctrl-click) the NSL file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .NSL is nsL Script. Because only the current version supports the latest NSL file format. Search, therefore, e.g. on the Nullsoft manufacturer website after an available .NSL is nsL Script update.
  • To make sure that your NSL file is not corrupted or virus-infected, get the file again and scan it with antivirus software.