Range.NumberFormat Property (Excel)
Returns or sets a Variant value that represents the format code for the object.
Syntax
expression .NumberFormat
expression A variable that represents a Range object.
Remarks
This property returns Null if all cells in the specified range don't have the same number format.
The format code is the same string as the Format Codes option in the Format Cells dialog box. The Format function uses different format code strings than do the NumberFormat and NumberFormatLocal properties.
Example
These examples set the number format for cell A17, row one, and column C (respectively) on Sheet1.
Worksheets("Sheet1").Range("A17").NumberFormat = "General"
Worksheets("Sheet1").Rows(1).NumberFormat = "hh:mm:ss"
Worksheets("Sheet1").Columns("C"). _
NumberFormat = "$#,##0.00_);[Red]($#,##0.00)"