Read All Text from Textfile with Encoding in Windows RT

A simple extension for reading all text from a text file in WinRT with a specific encoding, made as an extension to StorageFile:

public static class StorageFileExtensions
{
    async public static Task<string> ReadAllTextAsync(this StorageFile storageFile)
    {
        var buffer = await FileIO.ReadBufferAsync(storageFile);
        var fileData = buffer.ToArray();
        var encoding = Encoding.GetEncoding("Windows-1252");
        var text = encoding.GetString(fileData, 0, fileData.Length);
        return text;
    }
}