GetValidFileName

1	var validName = FileHelper.GetValidFileName(invalidFileName);

GetFileSize

1 2	var size = FileHelper.GetFileSize(3216546); // Gb, MB, Kb...

GetStorageFile

1	var file = FileHelper.GetStorageFile(filePath);

GetFileFromEmbededResources

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2
3

// Resource Should be marked as EmbededResource
var uri = new Uri("ms-appx:///Assets/Mask/ForegroundFocusMask.png");
Stream? stream = FileHelper.GetFileFromEmbededResources(assembly, uri);

GetFileFromUri

// Resource Should be marked as Content and CopyToOutput enabled. (File exist in output directory)
// uri can be ms-appx or filePath
var uri = new Uri("ms-appx:///Assets/Mask/ForegroundFocusMask.png");
Stream? stream = FileHelper.GetFileFromUri(uri);

GetFileFromEmbededResourcesOrUri

internally call GetFileFromEmbededResources and GetFileFromUri.

Demo

you can run demo and see this feature.