do nlsw_data_setup
tabout pregnant south union race sex [iw=wt] ///
using table28.xlsx, replace style(xlsx)  ///
font(bold) c(freq col) f(0c)  ///
plugc(1:2 1:3) h2(Male Female Total) ///
h2c(2 2 2) /// 
h3(No. % No. % No. %) ///
h3c(1 1 1 1 1 1) ///
title(Table 28: Plugging columns - ///
fixing the problem) fn(Source: nlsw88.dta) open