File Extension Library


.NPO File Extension

  • Developer by: Kostas lab
  • Category: Various data Files

What is an .NPO file?

.NPO file extension is created by Kostas lab. .NPO has been classified as Various data Files.

.NPO is Nonpareil redundancy summary file

The npo file extension is mainly associated with the Nonpareil, a scientist software for Mac OS X and Linux operating systems developed by Kostas lab.

A .npo file stores redundancy summary data (tab-delimited file with six columns).


How to open:

You can use any text editor to view the data in a tab-delimited form.

How to convert:

Possibly can be exported to CSV or similar formats.

How to Open .NPO file on different platforms

Open .NPO File on Windows

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

Open .NPO File on Mac

  • Right-click (or Ctrl + Left-click) the .NPO 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 .NPO File on Linux

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

Open .NPO File on iPhone

Select a file. If you don't see an application to open the .NPO 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 .NPO 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 .NPO files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .NPO files

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