how do i increase the number of digits displayed

[Guest]

I am a person dealing with large numericals with digits more than 20 in
number(for eg. visa no:s and phone card no:s)..when I type in a no: such as
12345678912345678912 and enter the no: it is displayed as 1.23457E-27 how do
i enter such large no:s and have them displayed as such i.e without the
aforementioned formatting

 

[Don Guillett]

Excel goes to 15 max so format as text or 'at the start of the number

 

[Guest]

thanks a lot for the reply pal .. in fact thanx a million...

 

[Don Guillett]

send the million