RTF/doc to HTML script

[Naif]

Hi guys. I am new here and this is my very first post. From the past 2 days I have been trying to search for a PHP script or a class which I can use to convert either .doc or .rtf files into HTML format. I am creating a website which is going to feature tutorials. I want to save the tutorials as either rtf or doc documents and I want to use the php script to read, process and output the contents in HTML format. The only script I came across was one I found on www.phpclasses.org but the script seems to be buggy. Can anyone help me here? I will be looking forward for the replies.

Thanks

PS: I am aware of the fact that the .doc format is binary and that its possible to convert a doc file to HTML using the COM package but I am using a webhost which runs on Linux. So I am not looking for anything which depends on the COM package.