private void btnExportActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_btnExportActionPerformed
        String input = Utils.showFileChooser("Opslaan", "Tijdlijst");
        if (!input.isEmpty()) {
            boolean inverted = Utils.promptQuestion("Wilt u de tabel omgedraaid of precies zoals hierboven?", false, "Zoals hierboven", "Omgedraaid");
            ExcelExporter.Export(tblTimesheet, new File(input.contains(".xls") ? input : input + ".xls"), inverted);
        }
    }//GEN-LAST:event_btnExportActionPerformed