1) =TEXT(A1,"0000000000")
2) =LEFT("0000000000",10-LEN(A1))&A1
3) why not give A1 a custom format of "0000000000" ?
best wishes
--
Bernard V Liengme
Microsoft Excel MVP
http://people.stfx.ca/bliengme
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"Lindy" wrote in message
...
Help Urgent

I have a column with variable length numbers. I need to put these in a
new
column with leading zeros in front to make the length of the new cell to
10.
Example for cell with 23, I need a new column to hold 0000000023.
--
Lindy