How to read Microsoft doc file without reading extra bytes added by Microsoft.

kranti_datrange
Hi,
i want to read file contents from .doc file. i want to read the file byte by byte for searching word. Microsoft adds some extra bytes when a new doc file is created, i dont want to read those extra byts. Currently I am reading the file using FileInputSream. I have tried using FileReader as well. but it doesn't work. I dont want to use POI API because i need to read .txt and .rtf files as well. does anybody knows how to avoid reading those extra bytes.