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 ...
You can add a column in Excel by right-clicking or using the “Insert” option. These features are helpful for adding new data to a spreadsheet.
XDA Developers on MSN

9 Excel hacks I wish I knew earlier

Are you tired of feeling like an Excel novice? If you spend hours working on endless workbooks, it’s time to level up your ...