NativeMemoryArray_Blog1.cs

// for example, load large file.
using var handle = File.OpenHandle("4GBfile.bin", FileMode.Open, FileAccess.Read, options: FileOptions.Asynchronous);
var size = RandomAccess.GetLength(handle);

// via .NET 6 Scatter/Gather API
using var array = new NativeMemoryArray<byte>(size);
await RandomAccess.ReadAsync(handle, array.AsMemoryList(), 0);

// iterate Span<byte> as chunk
foreach (var chunk in array)
{
    Console.WriteLine(chunk.Length);
}