// Use the static FromFile method to load the GRF file
  var grf = Grf.FromFile( @"RO\test.grf" );

  // Get the GRF entry from the file
  var entryWasFound = grf.Find( "data\\idnum2itemdisplaynametable.txt", out GrfEntry entry );

  // Write the data from the entry to a file
  File.WriteAllBytes( @"directory\file.txt", entry.GetUncompressedData() );

  // Use the static FromFile method and pass ini file path into the method to load the collection
  var collection = GrfCollection.FromFile( @"RO\data.ini" );

  // Find the correct entry from all loaded GRF files.
  // This method behaves just like the game, entries from grf files with a higher 
  // priority hide entries with the same name in grf files with lower priorities
  var entryWasFound = collection.Find( "data\\idnum2itemdisplaynametable.txt", out GrfEntry entry );

  // Write the data from the entry to a file
  File.WriteAllBytes( @"directory\file.txt", entry.GetUncompressedData() );