Can anyone help me decifer the following:

PALeft = ExecuteExcel4Macro("get.chart.item
(1,1,""Plot"")") -1

I've inherited a spreadsheet which contains a macro for
determining the slope of a line drawn on a chart. I've
spent hours going through "help" trying to understand the
code in this particular macro.

I've just included the first line.........the other lines
are similar.

Any help would be appreciated.

Thanks