API Details

The "window"

`x1 - row/upper left co-ordinate

y1 - column/upper left co-ordinate

x2 - row range/bottom right co-ordinate

y2 - column range/bottom left co-ordinate`

Fore each request one of the following patterns must be met:

`x1 -> return all cells in this row

x1,x2 -> return the rows in range x1-x2 (inclusive)

y1 -> return all cells in this column

y1,y2 -> return the columns in range y1-y2

x1,y1 -> return the cell at x1,y1

x1,y1,x2,y2 -> return the cells bound by (x1,y1), (x2,y2)`