Problem saving txtfile contents to database

[cutie.monkey]

hi folks,

i got here a program reading an encrypted textfile then save the data to MySql database.
i read the textfile using this code:

QFile fr(qApp->applicationDirPath() + "/fptemplate.txt");
    if (!fr.open(QIODevice::ReadOnly))
	 return;
    QByteArray byte = fr.readAll();
    fr.close();

QFile fr(qApp->applicationDirPath() + "/fptemplate.txt");
    if (!fr.open(QIODevice::ReadOnly))
	 return;
    QByteArray byte = fr.readAll();
    fr.close();

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then i try to debug 'byte', this returns empty.
but when i try to create a new file then write the data of 'byte', is written correctly.

my problem here is this, how can i get the data of 'byte' then append it to string so i can
create mysql query then save it to database?

i attached here the sample textfile im working for.

thnks and i hop someone can help me solve my problem.