With this function [CO_DATA (co;field)], you can add data for a company in the worksheet, like address data, tax data, et cetera. You can find this company data at System ➔ General ➔ Settings ➔ Company data settings.
The advantage of not selecting a company is that the same report can be used for each company. You only need to change the default company to get the right data.
Example
CO_DATA(001;"pstcd")
This function displays the zip code from company 001.