It simply makes a grid of cells within a given selection.
Edit by : This plugin is very Similar to the Gridmaker plugin. It simply makes a Grid of cells within a given selection. There are three corner options, hard, soft (corner Pixels are removed) and rounded (three of the corner pixels are removed for a rounded look).
CellMaker is now found under the RENDER submenu you can free download CellMaker 3.3 now.