@sprazapati Word has this logic where it checks for the below-mentioned reg key to populate the author field for any word doc. Now there are many ways to set this reg key, one can set it manually or create a .reg to file. If I am not wrong, the office team recently added one of the policies in their ADMX package to facilitate this but I would see a confirmation from one of the office folks.
HKEY_CURRENT_USER\Software\Microsoft\Office\Common\UserInfo
REG_SZ: UserName
