for (int col = left; col <= right; ++col) {
if (row == top && col == left) { //skip the first cell
continue;
}
final CellImpl x = (CellImpl) _matrix.getCellIndex(row, col).getCell();
x.mySetValue(null, false); //set content to null, but don't fire event
FormatImpl xfmt;
try {
xfmt = (FormatImpl) fmt.clone();
} catch (CloneNotSupportedException e) {