NumberFormat Property
Returns or sets the format code for the object. Read/write String.
expression.NumberFormat
expression Required. An expression that returns one of the above objects.
NumberFormat property as it applies to the CellFormat and Range objects.
Returns or sets the format code for the object. Returns Null if all cells in the specified range don't have the same number format. Read/write Variant.
expression.NumberFormat
expression Required. An expression that returns one of the above objects.
Remarks
For the PivotField object, you can set the NumberFormat property only for a data field.
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)"