Microsoft Word has a date field, but it's not easy to use in an expression. If you need to update dates in a document, use Excel to calculate the dates and then run a mail merge.

Fields that don't update automatically pose a problem with many users because they don't remember to update them manually. When you need this functionality, use this VBA procedure.

Microsoft Excel’s mobile app lets you to take a picture of a table and paste the data directly into your spreadsheet. Here's how to use it.