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.
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
- 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
- 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.)