Cell cell = oldTopRow.getCellByIndex(i);
if (cell.isCoveredElement()) {
i = i + cell.getColumnsRepeatedNumber();
continue;
}
OdfStyle styleEle = cell.getStyleHandler().getStyleElementForWrite();
if (i < length - 1) {
setLeftBottomBorderStylesProperties(styleEle);
} else {
setRightBottomBorderStylesProperties(styleEle);
}