Declaring file types you want your application to be able to see
In Solution Explorer open Package.appxmanifest > Declarations > File Type Associations
In Properties > Name, give this declaration section a name. E.g. “resource_files”
Then in the Supported file type section
- Content type: can be blank
- File Type: the file extentions (e.g. “.mp3”)
Add as many as needed
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