CTTableParts tblParts = worksheet.getTableParts();

            final CTTablePart[] tablePartArray = tblParts.getTablePartArray();

            for(int i = 0; i < tablePartArray.length; i++) {

                if(tablePartArray[i].getId().equals(toDelete.getKey())) {

                    tblParts.removeTablePart(i);

                    //worksheet.setTableParts(tblParts);

                    break;

                }

            }

import java.io.OutputStream;

    /**

     * Delete table2, and create a named range in sheet0; it should automatically be assigned the name "Table4"

     */

    @Test

    public void testRemoveTable() throws IOException {

        final File resultDir=new File("build/custom-reports-test");

        XSSFWorkbook workbook = new XSSFWorkbook();

        XSSFSheet sheet0 = workbook.createSheet();

        final String procName="testTable";

        String fileName=procName+".xlsx";

        //  Create the table

        final XSSFTable table1=addTable(sheet0,3,0,2,4);

        final XSSFTable table2=addTable(sheet0,7,1,3,5);

        sheet0.removeTable(table1);

        final File file=new File(resultDir,fileName);

        try (OutputStream fileOut = new FileOutputStream(file)) {

            workbook.write(fileOut);

            System.out.println(String.format(Locale.ROOT, "%s: test file written to %s",procName,file.getAbsolutePath()));

        } catch (Exception e) {

            System.err.println(e.getMessage());

        } finally {

            workbook.close();

        }

    }