C#

String path = "path to your file";
System.IO.StreamReader reader = new System.IO.StreamReader(path);
String data = reader.ReadToEnd();
byte[] buffer = Encoding.ASCII.GetBytes(data);
System.Collections.BitArray bits = new System.Collections.BitArray(buffer);

//and then do whatever manipulation you have to do

Class Object
 
    Class MarshalByRefObject
 
        Class Component (IComponent, IDisposable)
 
            Class Control (IOleControl, IOleObject, IOleInPlaceObject,
                IOleInPlaceActiveObject, IOleWindow, IViewObject, IViewObject2,
                IPersist, IPersistStreamInit, IPersistPropertyBag, IPersistStorage,
                IQuickActivate, ISupportOleDropSource, IDropTarget, ISynchronizeInvoke,
                IWin32Window, IArrangedElement, IBindableComponent,
                IComponent, IDisposable)
 
                Class ScrollableContainer (IArrangedElement, IComponent, IDisposable)
 
                    Class ContainerControl (IContainerControl)
 
                        Class Form