FIXED function
Rounds a number to the specified number of decimals, formats the number in decimal format using a period and commas, and returns the result as text.
Syntax
FIXED(number,decimals,no_commas)
Number is the number you want to round and convert to text.
Decimals is the number of digits to the right of the decimal point.
No_commas is a logical value that, if TRUE, prevents FIXED from including commas in the returned text.
Remarks

Numbers in Microsoft Excel can never have more than 15 significant digits, but decimals can be as large as 127.

If decimals is negative, number is rounded to the left of the decimal point.

If you omit decimals, it is assumed to be 2.

If no_commas is FALSE or omitted, then the returned text includes commas as usual.

The major difference between formatting a cell containing a number by using a command (On the Home tab, in the Number group, click the arrow next to Number, and then click Number.) and formatting a number directly with the FIXED function is that FIXED converts its result to text. A number formatted with the Cells command is still a number.
Example
The example may be easier to understand if you copy it to a blank worksheet.
How to copy an example

Create a blank workbook or worksheet.

Select the example in the Help topic.
Note Do not select the row or column headers.
Selecting an example from Help

Press CTRL+C.

In the worksheet, select cell A1, and press CTRL+V.

To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.

