Windows 10: Making a Windows App as the default app for file type - how to find the installed app?

Hello,I'm using .fit files and have been looking for a software that can view them and convert them to .csv files. Luckily I found one in the Microsoft Store the app is called Fit File Tools. I installed it and it works perfectly. However, now I want to be able to open all my .fit files directly with this app, but I cannot find it in the "Open with..." menu. Searching for the app by its name does not give any results. I learned that I can't even view the location of this software since it is in this mysterious WindowsApps folder, so I don't even have a path name for it. I managed to unhide t

:)

 

How to change default app for file type

'Open With > Choose another app' has three step, in the first it only offers apps registered for that file type. If you click 'More apps' it lists all registered apps regardless of suitability. Both these steps have the tick-box for 'Always use...' in my 18363.752. The third step, if needed, is 'Look for another app on this PC'. The 'Always use...' must be ticked before taking this step if you want the change to stick. However, WMP appears at the second step.

For a quick look at a JPG almost anything (including WMP) is more practical than Photos which on my system takes more than ten seconds just to open a photo. The OP is probably not aware that the Windows Photo Viewer is still available in W10, but hidden away. That's my default viewer for JPG.


Restore Windows Photo Viewer in Windows 10

And, once enabled, is available in Settings > Apps > Default apps.

 

How to change default app for file type

@Bree - yes, I'm quite aware of this thanks, but as you will see it's missing. I recall reading that clicking the dialogue at a certain point in blank space made it appear, and trying that once successfully, but doesn't seem to help now. Plenty of other similar reports of this option being missing.





'Fix' described here: (essentially unassociate the extension)
Windows 10 "Always use this app" checkbox missing - Super User

 

How to make patch-able apps

because the installer is a seperate exe.

crude way of doing it, your app checks a file online for latest version of your app and compares it to the version number running, if update is need your app downloads the update installer, once the update has finished downloading your app runs the update installer and closes your main app. update installer runs all updated restart your app.