Can someone express in plain English please what this construct is specifying in laying out 8 columns?
\begin{longtable}{@{} l @{\extracolsep{\fill}} *{7}{d{7}} @{}}
Incidentally it works fine with the very nice dcolumn package ...
\usepackage{dcolumn}
\newcolumntype{d}[1]{D{.}{.}{#1} }
John Simmie//NUI Galway