Microsoft Office 2016 provides an accessibility check in all its programs.
Excel, Powerpoint, and Word each have a built-in Accessibility Checker that can usually identify accessibility errors and warning. To use the Accessibility Checker, click File > Info > Check for Issues > Check for Accessibility.
Inspection Results will appear to the right of your document and contain accessibility errors and warnings that must be fixed to make the document accessible. Why Fix and How to Fix information is also provided under the results.
*This requires Adobe Acrobat DC. If you do not have Adobe Acrobat DC, please submit a Help Desk ticket to have it installed.
Choose Tools > Accessibility or simply click on Accessibility in the right hand pane.
Click Full Check & make sure each of the boxes in the list of options is checked for each Category. Exception: Under the Forms, Tables & Lists Category, it is not necessary to check 'Tables must contain the same number of columns in each row and rows in each column' or 'Tables must have a summary'.
If your table is complex, a table summary should be included.
Select Start Checking, and any issues will be displayed in the left hand selection pane.
Clicking on each identified heading (Document, Page Content, Forms, Alternate Text, Tables, Lists, Headings) will reveal the issues that need to be fixed.