Apr 19, 2018 Microsoft Equation Editor 3.0 is no longer supported. Math Equations created using Microsoft Equation Editor 3.0 may not display due to absence of MT Extra font. To fix the issue download and install MT Extra font and restart the Office application. Normal Access to Equation Editor. From the menu, choose INSERT → OBJECT → CREATE NEW, then scroll down to Microsoft Equation 3.0, highlight, click OK. If you cannot find Microsoft Equation 3.0 you need to install it (from your Office CD). Accessing Equation Editor on TSG Computers. Equation Editor is NOT installed when WORD is started! Microsoft Equation Editor 3.0 Free Download. Once you have written your equations, you can resize the fonts and zoom them in and out. You can also cut or copy the equations and paste them anywhere or even print them. The Microsoft Equation Editor also allows users to export their equations to several image formats such as JPG, PNG, BMP, and GIF. Equation Editor (Microsoft Equation 3.0) was included in earlier versions of Word, but was removed from all versions in the January 2018 Public Update (PU) and replaced with a new equation editor. In the Object type box, click Microsoft Equation 3.0. If Equation Editor is not available, you might have to install it. Install Equation Editor. Because in this post I'm giving some keyboard shortcuts for Microsoft Equation 3.0. Office XP and 2003 users can launch Equation Editor from Insert - Object - Microsoft Equation 3.0. And Office 2007 and 2010 users will find it from Object option under Insert Tab located at the upper right corner of the screen.
The short answer is you need to buy a new font. Out of the box, Office 2010 and 2013 have only Cambria with all of the math characters that are needed for the Equation Editor. You can verify this is also your circumstance by clicking expand link at the bottom right of the TOOLS box in the EQUATION EDITOR > DESIGN tab (see the screen shot to the right)
After some considerable effort, I have still not found a compatible font so I have posted this with Microsoft Partner Support and after some back and forth, this is what they said:
Microsoft Word Equation
…Cambria Math is the only supported font that can be used in Equation Editor in Word 2013 for the time being. Anyway, the DEFAULT FONT is a drop down box and it will have alternates after some improvements are made by the developing team. Voluntary appeal file application form. Serial data transmission vs parallel data transmission.
Microsoft Equation
A slightly longer answer is the work around of forcing your equation to “NORMAL TEXT” (see the screen shot to the right). The tells Word that you you are not writing math, just normal text which will then allow you to change the font at will. The risk here is that you will lose characters because they don’t exist in your new font (say Arial).