File Extension Library


.MSN File Extension

  • Developer by: Microsoft
  • Category: Settings Files

What is an .MSN file?

.MSN file extension is created by Microsoft. .MSN has been classified as Settings Files.

.MSN is Host Blocking File

Contains a list of blocked Internet hosts, often identified by IP addresses; prevents certain websites and other Internet locations from being accessed.

The default host blocking file is typically named "hosts.msn" and is located in the "C:\WINDOWS\system32\drivers\etc" directory.

How to Open .MSN file on different platforms

Open .MSN File on Windows

  • Right-click a .MSN
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .MSN file and Select check box "Always use this app to open .MSN files" Press "Ok"

Open .MSN File on Mac

  • Right-click (or Ctrl + Left-click) the .MSN file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .MSN File on Linux

Right click on the .MSN file, choose "Open with" and select a program from the list above

Open .MSN File on iPhone

Select a file. If you don't see an application to open the .MSN file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .MSN File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .MSN files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .MSN files

  1. You need to update the application that you normally use to open .MSN files. Only the latest version of the software supports the current .MSN file format
  2. You need to check the .MSN file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)