In the present electronic era to preserve the user data securely is a keen challenge. Nowadays, steganography is a rising orbit being utilized for guaranteed secure data transmission over the different mediums. Steganography is a technique which masks a message to hide its existence and make it appear "imperceptible by the eyes". It has been very clear that most of the text based steganography methods have the major drawback of low embedding efficiency. In this paper, authors have proposed a novel system of information hiding. The system targeted to MS Word structure known as Microsoft Compound Document File Format (MCDFF) to hide data within unused area and to make sure changes made to the Microsoft word document will not be detected as well as the original contents of file be kept as it is so that it looks like the normal file. The system has used Microsoft Word Document as a cover file.