If the content in most (but not necessarily all) cases is difficult for people with disabilities to understand, the Accessibility Checker gives a warning.
Ensure that hyperlink text is meaningful.
Link text makes sense as standalone information, providing accurate information about the destination target. Based on the text, users decide whether to click a hyperlink. The text should provide clear information about the link destination.
Ensure that all tables have a simple structure.
Tables are simple rectangles with no split cells, merged cells, or nesting. Users navigate tables via keyboard shortcuts and assistive technology, which rely on simple table structures.
Ensure that tables don’t use blank cells for formatting.
There are no entirely blank rows or columns in the table. Blank table cells can mislead a user into thinking that there is no more content in the table.
Ensure that sheet tabs have meaningful names.
Sheets in the workbook include descriptive information and there are no blank sheets. Descriptive sheet names, such as “October sales totals,” make it easier to navigate through workbooks than do default sheet names, such as “Sheet1.”
Avoid the use of repeated blank characters.
There are no runs of blank spaces, tabs, or carriage returns. Spaces, tabs, and empty paragraphs often are read as blanks by assistive technology. After hearing several “blanks,” people might think that they have reached the end of the information.