All Microsoft Office applications haul the available fonts list from the system fonts stored in the Windows directory. You need to install the font in the Windows Fonts folder in order to access the font from Word, PowerPoint, Excel or any of the other Microsoft Office applications.
Add new Microsoft Word fonts most fonts downloaded from the internet are delivered as a .zip file. To install the font, you want to unzip the file using an application like WinRAR or the built-in compression app in Windows. After you unzip the font, locate the .TTF file that is the font. Right-click this files and chooses Install from the right click menu. The font should automatically install in the windows fonts folder and be available for use in every application on your system.
The other way to install a font is to browse to C:\Windows\Fonts and copy the font from your desktop to the Fonts folder, which also automatically installs the font on your system.