Apache POI : How to format numeric cell values

Question

I am using Apache POI 3.9 for XLS/XLSX file processing.

In the XLS sheet, there is a column with numeric value like \"3000053406\".

When I read it with POI w

Answer 1

Creating a BigDecimal with the double value from the numeric cell and then using the

BigDecimal.toPlainString()

function to convert it to a plain string and then storing it back to the same cell after erasing the value solved the whole problem of exponential representation of numeric values.

The below code solved the issue for me.

    Double dnum = cellContent.getNumericCellValue();
    BigDecimal bd = new BigDecimal(dnum);
    System.out.println(bd.toPlainString());
    cellContent.setBlank();
    cellContent.setCellValue(bd.toPlainString());
    System.out.println(cellContent.getStringCellValue());