SUMMARY
In Microsoft Excel, you can use either of two methods for using a custom number format to display leading zeros. Use one method for fixed-length
numbers and use the other method for variable-length numbers.
Method 1: Fixed-length Numbers
When you want to display leading zeros for a fixed-length number,
create a custom format with the same number of zeros (0) as
digits that you want to display. For example, if you want to
display a fixed-length number with five digits, create a custom
number format with five zeros.
Example 1:
Use the 00000 format to display a number with five digits. When you use
this format, the numbers that you type and the numbers that Microsoft Excel
displays are listed in the following table.
Typed number Displayed number
--------------------------------
28217 28217
1234 01234
Example 2:
Use the 00000-0000 format when you want the number to appear as
five digits followed by a hyphen and four more digits. When you use this
format, the numbers that you type and the numbers that Microsoft Excel
displays are listed in the following table.
Typed number Displayed number
--------------------------------
8217 00000-8217
82170000 08217-0000
Method 2: Variable-length Numbers
When you want to display leading zeros for variable-length
numbers, create a custom format with the same number of zeros (0)
(in quotation marks) as leading zeros that you want to display, followed
by the number sign (#). For example, if you want to format a
variable-length number with three leading zeros, create the
following custom number format:
Example 1:
Use the "0"# format when you want to display one leading zero. When you use
this format, the numbers that you type and the numbers that Microsoft Excel
displays are listed in the following table.
Typed number Displayed number
--------------------------------
123 0123
45 045
Example 2:
Use the "000"# format when you want to display three leading
zeros. When you use this format, the numbers that you type and the numbers
that Excel displays are listed in the following table.
Typed number Displayed number
--------------------------------
123 000123
45 00045