Everything you need to know to write effective alt text
https://support.microsoft.com/en-us/office/everything-you-need-to-know-to-write-effective-alt-text-df98f884-ca3d-456c-807b-1a1fa82f5dc2
WEBRight-click an image, chart, or other object, and select View Alt Text . Tip: On the Review tab, you can select the Check Accessibility drop down and choose Alt Text. In the Alt text pane on the right, edit or approve the displayed alt text (if automatically generated). If the image doesn't need alt text, such as a border, select Mark as ...
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