Here is a tutorial to lock or hide only the formula cells in an Excel workbook. You can also lock formulas in all worksheets in a workbook.

Excel has formulas for almost all operations. Having said that, if you want to hide formulae if you are sharing your Excel spreadsheet with your colleagues or boss, you can do so.

First, select the cells with formulas you want to hide and protect, cells E4:E7 in our example sheet. Right-click the selection and choose Format Cells from the resulting submenu.

You can easily hide and unhide columns in Excel by individually revealing hidden columns or using the "Format" option to unhide all hidden cells.

Microsoft Excel 2010 provides a formula for calculating the average value from multiple worksheets in a workbook. Before you apply this formula, check that each worksheet is formatted the same way.

Hiding and then unhiding columns in Excel only takes a few clicks. In this guide, we'll show you how to hide columns and bring them back in no time at all.