/**
     * Remove a column from the table, and shift the remaining cells to the left.
     *
     * @param columnIndex
     *            the 0-based position of the column in the table
     * @throws IllegalArgumentException
     *             if no column at the index exists or if the table has only a
     *             single column
     * @since 4.0.0
     */
    public void removeColumn(int columnIndex) {
        if (columnIndex < 0 || columnIndex > getColumnCount() - 1) {
            throw new IllegalArgumentException("Column index out of bounds");
        }
        
        if(getColumnCount() == 1) {
            throw new IllegalArgumentException("Table must have at least one column");
        }
        
        final boolean bFixBug62759=true;
        
        if(bFixBug62759){
            final CellReference from = getStartCellReference();
            final CellReference to = getEndCellReference();
            final int nFirstRow=from.getRow();
            final int nLastRow=to.getRow();
            final int nFirstCol=from.getCol();
            final int nLastCol=to.getCol()-1;
            final int nFirstColToShift=nFirstCol+columnIndex+1;
            final int nLastColToShift=to.getCol();
            final XSSFSheet sheet=getXSSFSheet();
            
            CTTableColumns tableColumns = ctTable.getTableColumns();
            tableColumns.removeTableColumn(columnIndex);
            tableColumns.setCount(tableColumns.getTableColumnList().size());
            final AreaReference area = new AreaReference(new CellReference(nFirstRow,nFirstCol), new CellReference(nLastRow,nLastCol),
                    SpreadsheetVersion.EXCEL2007);
            setArea(area);
            
            /*
             *   Now shift the cells in the table to the left.  This will not affect cells outside the table.
             *   THIS DOES NOT CHANGE ANY FORMULAE!!!
             */
            final String procName="XSSFTable.removeColumn";
            System.out.println(String.format("\n%s: columnIndex=%d nFirstColToShift=%d nLastColToShift=%d", procName,columnIndex,nFirstColToShift,nLastColToShift));
            
            if(nFirstColToShift<=nLastColToShift) {
                for(int nRow=nFirstRow;nRow<=nLastRow;++nRow) {
                    final XSSFRow row=sheet.getRow(nRow);
                    row.shiftCellsLeft(nFirstColToShift,nLastColToShift, 1);
                }
            } else {
                for(int nRow=nFirstRow;nRow<=nLastRow;++nRow) {
                    final XSSFRow row=sheet.getRow(nRow);
                    final XSSFCell cell=row.getCell(nLastColToShift);
                    if(cell!=null) {
                        row.removeCell(cell);
                    }
                }
            }
                        
        } else {
            CTTableColumns tableColumns = ctTable.getTableColumns();
            tableColumns.removeTableColumn(columnIndex);
            tableColumns.setCount(tableColumns.getTableColumnList().size());

        }
        updateReferences();
        updateHeaders();
    }