If the length of the entries must be 7...

=TEXT(C2,"0000000")

will do so.

BTW, Calculation must be set to Automatic (see Tools|Options).

jeanette.rimmer wrote:
Hi, Im trying to insert 00 to the start of a number so that 98765 becomes
0098765, Ive set up a concatenate but for some reason this only works in the
first cell

=CONCATENATE($E$1,C2) where e1 contains 00.

When I copy this down the sheet I only get the number in the first column,
however when I then go and double click in the cell the formula updates and
gives me the correct answer

Any ideas?

Thanks



--

[1] The SumProduct function should implicitly coerce the truth values to
their Excel numeric equivalents.
[2] The lookup functions should have an optional argument for the return
value, defaulting to #N/A in its absence.