It is recommended that you do not use Microsoft Word’s Equation Editor tool for creating STEM content!
Equation Editor uses Office Math Markup Language (OMML) as the preferred output format. While the content is available to individuals who are visually able to see and process the information, it is not accessible to those individuals who require the use of a screen reader (e.g., students with visual impairments) or text-to-speech application (e.g., dyslexia, cognitive disorders, etc.).