How to export contacts from Outlook to backup your contact information, or add it to other programs

To export contacts from Microsoft Outlook, you'll need to use Outlook's "Export to a file" feature, which is built-in.
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Everything You Need to Know About Data Validation in Microsoft Excel

To apply data validation rules to a selected cell or range, head to the "Data" tab on the ribbon, and click the top half of the "Data Validation" icon if you're using a wide screen, or the left half ...