## Excel 2010

### How to hide/display comment indicators

When a comment has been inserted in a cell, the little red triangle is being displayed to indicate a comment
in a cell. This tip is how to hide/display this indicator.

### Using advanced filtering

In addition to manual data filtering Excel enables fully automated filtering based on data from the
specified range of cells. Before you can use the advanced filtering feature, you must set up a criteria
range. A criteria range is a designated range on a worksheet that conforms to certain requirements.

### Grouping and ungrouping sheets

Sheets can be grouped (connected) to facilitate creating or formatting two or more identical sheets. For
example, you can create one sheet and copy it to two other sheets, or you can group three blank sheets and
enter and format the content once-no subsequent copying required.

### Edit cells data

You can edit data in cells this in several ways:

### Basic Formula operators

There are several operators that could be used in formulas.

### Entering decimal points automatically

If you need to enter lots of numbers with a fixed number of decimal places, Excel has a useful tool:

### How to avoid misleading numbers

Applying a number format to a cell doesn't change the value, but only how the value appears in the
worksheet. Formatting can play a joke with you, e.g., sum of values seems incorrect because Excel displays a
limited number of decimal places and their sum is not equal to the real sum.

### Using the formula bar as a calculator

If you simply need to perform a calculation, you can use the

**Formula**bar as a calculator.### Referencing cells outside the worksheet

Formulas can refer to cells in other worksheets-and the worksheets don't even have to be in the same
workbook. Excel uses a special type of notation to handle these types of references.