QOdbc read/write excel

#include <QApplication>
#include <QSqlDatabase>
#include <QDebug>
#include <QMessageBox>
#include <QSqlQuery>
#include <QVariant>
#include <QTime>
#include <QTextCodec>
void writeExcel(QString excelFilePath)
{
// Create a database instance and set the connection string
    QSqlDatabase db = QSqlDatabase::addDatabase("QODBC","excelexport");
    QString dsn = QString("DRIVER={Microsoft Excel Driver (*.xls)};DSN=''; FIRSTROWHASNAMES=1; READONLY=FALSE;CREATE_DB=\"%1\";DBQ=%2").
            arg(excelFilePath).arg(excelFilePath);
    db.setDatabaseName(dsn);
// Open the database
    if (!db.open())
    {
        qDebug()<< "open false";
        QMessageBox::about(NULL, "r", "open false");
    }
// Create a table
    QString sql = "create table sheet (name TEXT, age NUMBER)";
    QSqlQuery query(db);
    if (!query.exec(sql))
    {
        qDebug()<< "create table false！";
        QMessageBox::about(NULL, "r", "create table false！");
    }
// Write data
    db.exec( "insert into sheet(name, age) values('ctb', '28')");
    db.exec( "insert into sheet(name, age) values('xw', '19')");
    db.exec( "insert into sheet(name, age) values('lg', '34')");
// Close the database
    db.close();
}
void readExcel(const QString excelPath)
{
// QODBC driver is required for the excel database connection string
    QSqlDatabase db = QSqlDatabase::addDatabase("QODBC","excelexport");
    QString connString = QString("Driver={Microsoft Excel Driver (*.xls)};Readonly=1;DriverId=790;Dbq=%1;DefaultDir=D:\\").arg(excelPath);
    db.setDatabaseName(connString);
// Open the database
    if (!db.open())
    {
        qDebug()<< "open false";
        QMessageBox::about(NULL, "r", "open false");
    }
// Query data
    QString sql = "Select * from [sheet$]";
    QSqlQuery query(sql, db);
    while (query.next()) {
// Read data
        QString name = query.value(0).toString();
        int age = query.value(1).toInt();
        qDebug()<< name << age <<endl;
    }
// Close the database
    db.close();
}
int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
// Chinese support
    QTextCodec::setCodecForLocale(QTextCodec::codecForName("system"));
    QTextCodec::setCodecForTr(QTextCodec::codecForName("system"));
    QTextCodec::setCodecForCStrings(QTextCodec::codecForName("system"));
    writeExcel("D:\\test01.xls");
    readExcel("D:\\test01.xls");
    return a.exec();
}
Write result:

Read printed results: