This simple function acts as a critical safety net for your workbooks.

Many Microsoft Excel sheets store date and time values. Sometimes the two values appear in the same cell, and sometimes they do not. If you work with dates and/or times, you need a good understanding ...

Your summarizations, analyses, projections, reports and so on, are only as good as your data. It’s important that you use every resource available to protect the validity of the data, which means you ...

Block bad data, duplicates, and incorrect dates with these custom rules.

Did you know that you can leave notes on specific Excel cells for people to read? It’s a great way to safeguard against data entry mistakes by putting in reminders or instructions. Here’s how to set ...