Descriptive link text helps all readers understand where links go. This is particularly important for assistive technology users, as well as people with cognitive and learning disabilities. In addition, this practice aids screen reader users. These users may encounter link text out of context (in a links list) and need clear information about the destination of each link. Furthermore, links should be unique and they should be clearly and consistently styled to avoid confusion.
When creating a link, choose text that clearly describes the destination of that link. Your link text should be short – in most cases, six or fewer words will suffice. But a reader must know, with relative precision, where a link will take them. Ask yourself: if all the other text on the page were removed, would I know where this link takes me?
Because users will almost always consume excel sheets on a device rather than printing them, it's best to use embedded links in this format. To do this, highlight the link text, right click, and go to link. Then paste the URL in the address field and click 'Ok.'
You should also avoid using repetitive link text. Document authors will sometimes use the link text “Click here" or “Read more" multiple times in a document. This link text is not descriptive, and it is also repetitive. Two links in a document must not have the same link text, unless the two links share the same destination. (In the first example above, the link text should tell readers where they will go if they click on the link; in the second example, the link should tell readers what they can read more about.)
Furthermore, if your link opens a document, it is good practice to list the document format in parentheses or brackets after the link text. For example, “Accessibility Policy (pdf)." This alerts readers that clicking the link will open a document and prepares them for the type of document that will open.
Finally, the visual styling of links should be conventional and consistent. As a matter of convention, links are usually indicated with an underline. To avoid confusion, reserve underlines for links, not for emphasis. Links should also be a different color from surrounding text to support findability. This color must meet minimum color contrast thresholds. Note that the predefined link style in PCS templates meets color contrast thresholds.
Relevant Standards