How to change default file format in windows 10

- How to change default file extension in windows 10
- How to change default app for file type in windows 10
- How to change default file type open with program windows 10
- How to change default application for file type windows 10
- How to change the default icon for a file type in windows 10
- How to set default program for file extension windows 10
- How to set default application for file type windows 10
- How to change default file type in windows 10
- How to set default file format in windows 10
- How to change the default icon of a file extension in windows 10