File Extension Library


.AC9 File Extension

  • Developer by: National Instruments Corporation
  • Category: Various data Files

What is an .AC9 file?

.AC9 file extension is created by National Instruments Corporation. .AC9 has been classified as Various data Files.

.AC9 is SPICE AC/frequence domain output file

The ac9 file extension is associated with SPICE (Simulation Program with Integrated Circuit Emphasis) program, developed by National Instruments Corporation. The ac9 extension files are used for AC/frequence domain output.


How to open:

It is not possible to open files with ac9 extension.

How to convert:

It is not possible to convert files with ac9 extension.

How to Open .AC9 file on different platforms

Open .AC9 File on Windows

  • Right-click a .AC9
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .AC9 file and Select check box "Always use this app to open .AC9 files" Press "Ok"

Open .AC9 File on Mac

  • Right-click (or Ctrl + Left-click) the .AC9 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 .AC9 File on Linux

Right click on the .AC9 file, choose "Open with" and select a program from the list above

Open .AC9 File on iPhone

Select a file. If you don't see an application to open the .AC9 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 .AC9 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 .AC9 files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .AC9 files

  1. You need to update the application that you normally use to open .AC9 files. Only the latest version of the software supports the current .AC9 file format
  2. You need to check the .AC9 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)