QFile open Excel file

[Julian]

Hello people. How are you?

A question. It's possible to open a microsoft exel's file with QFile?

QString nombre;
    nombre=ui->lineEdit->text();

    file= new QFile(nombre);
    if (!file->open(QIODevice::ReadOnly | QIODevice::Text))
           {
           QMessageBox msg;
           msg.setText("The file is not open");
           msg.exec();

           qDebug()<<"the problem is :"<<file->error()<<endl;
    }

And the return of qDebug() is 5. By the way the QString is the exel'name.

[Eddy]

Hi Julian,

You will need the ActiveQt framework for that.

Here is a good starting point : Using_ActiveX_Object_in_Qt

Happy coding!

[jsulm]

@Julian It is possible to open any file with QFile as long as your process has needed access rights. Use http://doc.qt.io/qt-5/qiodevice.html#errorString to get error text.
But if you want to handle Excel documents then you will need to do what @Eddy suggested.

[VRonin]

• I want my program to open MS Excel and load the file: QDesktopServices::openUrl(QUrl::fromUserInput(ui->lineEdit->text()));

• I want to read/write an excel file with my application and I have MS Excel installed on my machine: https://forum.qt.io/topic/80167/qfile-and-fle-s-tipes/3

• I want to read an excel file and I don't have MS Excel:

QSqlDatabase db = QSqlDatabase::addDatabase("QODBC");
db.setDatabaseName("DRIVER={Microsoft Excel Driver (*.xls, *.xlsx, *.xlsm, *.xlsb)};DBQ=" + ui->lineEdit->text());

• I want to read/write an excel file and I don't have MS Excel: https://github.com/VSRonin/QtXlsxWriter

For more info: https://wiki.qt.io/Handling_Microsoft_Excel_file_format