It’s a restriction here as this is a shared environment. If you use the regular wordpress software and a host, it’s just your own blog there. Some content is stripped out of user input and with certain roles of access but it’s just a simple matter of bringing up the database and putting it in that way if needbe.
*chuckle* if you think WordPress/ TinyMCE hates Word docs, you should see what phpNuke does to one. :)