intergrid
Convert spreadsheet coordinates like A1, d3:e4, AA31..AB33 to equivalent notations (r1c1, R1C1, d3..e4, {col:1,row:1}...) and vice versa
Convert spreadsheet coordinates like A1, d3:e4, AA31..AB33 to equivalent notations (r1c1, R1C1, d3..e4, {col:1,row:1}...) and vice versa