///============================================================== 
  
 /// Office File Reader 
  
 ///============================================================== 
  
 using System; 
  
 using System.Text; 
  
 using System.Runtime.InteropServices; 
  
  
 namespace OfficeFileReader 
 { 
   #region Stuff you Dont even need to look at 
   [Flags] 
  
   public enum IFILTER_INIT 
   { 
  
     NONE = 0, 
  
     CANON_PARAGRAPHS = 1, 
  
     HARD_LINE_BREAKS = 2, 
  
     CANON_HYPHENS = 4, 
  
     CANON_SPACES = 8, 
  
     APPLY_INDEX_ATTRIBUTES = 16, 
  
     APPLY_CRAWL_ATTRIBUTES = 256, 
  
     APPLY_OTHER_ATTRIBUTES = 32, 
  
     INDEXING_ONLY = 64, 
  
     SEARCH_LINKS = 128, 
  
     FILTER_OWNED_VALUE_OK = 512 
  
   } 
  
  
   [Flags] 
  
   public enum IFILTER_FLAGS 
   { 
  
     OLE_PROPERTIES = 1 
  
   } 
  
  
   public enum CHUNK_BREAKTYPE 
   { 
  
     CHUNK_NO_BREAK = 0, 
  
     CHUNK_EOW = 1, 
  
     CHUNK_EOS = 2, 
  
     CHUNK_EOP = 3, 
  
     CHUNK_EOC = 4 
  
   } 
  
  
   [Flags] 
  
   public enum CHUNKSTATE 
   { 
  
     CHUNK_TEXT = 0x1, 
  
     CHUNK_VALUE = 0x2, 
  
     CHUNK_FILTER_OWNED_VALUE = 0x4 
  
   } 
  
  
   public enum PSKIND 
   { 
  
     LPWSTR = 0, 
  
     PROPID = 1 
  
   } 
  
  
   [StructLayout(LayoutKind.Sequential)] 
  
   public struct PROPSPEC 
   { 
  
     public uint ulKind; 
  
     public uint propid; 
  
     public IntPtr lpwstr; 
  
   } 
  
  
   [StructLayout(LayoutKind.Sequential)] 
  
   public struct FULLPROPSPEC 
   { 
  
     public Guid guidPropSet; 
  
     public PROPSPEC psProperty; 
  
   } 
  
  
   [StructLayout(LayoutKind.Sequential)] 
  
   public struct STAT_CHUNK 
   { 
  
     public uint idChunk; 
  
     [MarshalAs(UnmanagedType.U4)] 
     public CHUNK_BREAKTYPE breakType; 
  
     [MarshalAs(UnmanagedType.U4)] 
     public CHUNKSTATE flags; 
  
     public uint locale; 
  
     [MarshalAs(UnmanagedType.Struct)] 
     public FULLPROPSPEC attribute; 
  
     public uint idChunkSource; 
  
     public uint cwcStartSource; 
  
     public uint cwcLenSource; 
  
   } 
  
  
   [StructLayout(LayoutKind.Sequential)] 
  
 &nbs