An Out look message, a MS Word document, an Excel spreadsheet, or a PowerPoint presentation can use Accessibility Checker to make sure your content is accessible.
What is accessibility checker?
Accessibility checker is a free tool available in newer versions of Word (Office 2010, 2013 and office 365), Excel, Outlook, OneNote, and PowerPoint on Windows, Office for the web, or Mac, and Visio on Windows. It helps you find most accessibility issues and explains why each might be a potential problem for someone using with assistive technologies like screen reader. It also offers suggestions on how to fix each issue.
Although the tool catches various types of accessibility issues in the document, there might be some issues It is not capable of detecting. For example it can detect missing alternative text and suggest text, but it cannot be accurate. That's why it's important to review your work visually to find the issues hiding from the Accessibility Checker.