Excel Question-How to set an resolution for a number range?

[VashHT]

I am trying to format a number range so that it has a set resolution-say.005. I am having trouble finding anything like that in the format number guides I have been looking up, does anyone know how to do this?

 

[postmark]

I'm not at my PC but this should be doable with the round function if I'm not mistaken

Edit:
Yep this should do it
=ROUND(A1/0.005,0)*0.005

Found it here: http://www.mrexcel.com/forum/excel-questions/45283-rounding-decimals.html