File Extension Library


.QD9 File Extension

  • Category: Database Files

What is an .QD9 file?

.QD9 file extension has been classified as Database Files.

.QD9 is Omnis Quartz segment 9 data file

The QD9 file extension is associated with Omnis Quartz, one of the first GUI databases for Microsoft Windows. The latest product of this family is called Omnis Studio.

The *.qd9 files contain the 9th segment of database data.


How to open:

Currently there is no specific information available, about how to open this file extension.For general information try to look at:Basic info how to open databases

How to convert:

Currently there is no specific information available, about how to convert this file extension. For general information try to look at:Basic info how to convert databases

How to Open .QD9 file on different platforms

Open .QD9 File on Windows

  • Right-click a .QD9
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .QD9 file and Select check box "Always use this app to open .QD9 files" Press "Ok"

Open .QD9 File on Mac

  • Right-click (or Ctrl + Left-click) the .QD9 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 .QD9 File on Linux

Right click on the .QD9 file, choose "Open with" and select a program from the list above

Open .QD9 File on iPhone

Select a file. If you don't see an application to open the .QD9 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 .QD9 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 .QD9 files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .QD9 files

  1. You need to update the application that you normally use to open .QD9 files. Only the latest version of the software supports the current .QD9 file format
  2. You need to check the .QD9 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)