# Pad week numbers with zeros

The TEXT function can apply number formats of any kind, including currency, date, percentage, etc. By applying a number format like "00", "000", "0000", you can "pad" numbers with as many zeros as you like. Zeros will only be added where needed.

### Number format only

The TEXT function converts numbers to text as a normal step in applying the number format.

If you are concatenating (joining) the result to another text string, this is fine, but if you just want to apply visual padding to a free-standing number set of numbers, you can apply a custom number format without using a formula.

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