How to create a drop-down list in Excel to manage data and prevent mistakes

You can easily create a drop-down list in Excel to limit the values that can be entered in a column. Here's how to set one up ...

How to lock cells in Microsoft Excel, so you need a password to change or erase data

You can lock cells in Excel by heading into the program's "Protection" tab. There, you can set a password, and protect your ...
How-To Geek on MSN

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 ...
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Excel-tutorial: opzetten van een dynamische salarisbegroting

Salarisgegevens updaten aan de hand van een periodieke verhoging doe je het best met dynamische matrixformules. Dit biedt ...