I have a series of "charts" I created with Excel (before discovering LaTeX) to show the ROM character patterns for an old computer for inclusion in a book on retrocomputing. My dilemma is how to ...
I want to read .xls format file in pgfplot to draw a graph. I couldn't find how to do that. Is it possible to do that? I have attached a small .xls file here for which I want to compute plot. ...