If You Use MS Word, Take Care 0
Maliciously-constructed Word documents containing the Mdropper-H Trojan have begun to circulate on the net in messages that pose as internal emails. The malware contains a number of objects (such as PowerPoint slides and Excel charts) along with Backdoor-Ginwui, which opens a back door that allows hackers to control compromised Windows PCs.
The article has links to more information about the Trojan and methods of defending against it.
Better, get Open Office.