AngleSharp by Florian Rappl

<PackageReference Include="AngleSharp" Version="0.8.3" />

 IFileList

public interface IFileList
Represents a list of files. http://dev.w3.org/2006/webapi/FileAPI/#dfn-filelist
IFile this[int index] { get; }

Gets the file at the specified index.

int Length { get; }

Gets the number of files in the list.