$file = new File('path/to/my/file.txt');
$file->read();

$fileData = $file->getRawData();
// Do anything you like with data string.

$file = new File('path/to/my/file.txt');
//Read bytes 10-100 inclusive
$file->read(10, 100);

$fileData = $file->getRawData();

$file = new File('path/to/my/new/file.txt');

//The method File::create() is used to create new files
$file->create();
$file->setRawData('Hello World');
$file->write();

$file = new File('path/to/my/old/file.txt');
$file->setRawData('Hello');
$file->write();
$file->setRawData(' World');
$file->write();

//Setting raw data before each call to the method File::write() will append to file.

$file = new File('path/to/my/old/file.txt');
$file->setRawData('Hello');
$file->write();
$file->setRawData(' World');
$file->write(true);

//By supplying true as parameter to the method File::write(), the old content of the file will be overridden. 

$file = new File('file.txt');

//'Hello World!' in base64
$encodedData = 'SGVsbG8gV29ybGQh';

$file->setRawData($encodedData, true);
$decoded = $file->getRawData();

//$decoded is now the string 'Hello World!'
//By supplying true as second parameter to the method File::setRawData(), the method will decode given data

$file = new File('file.txt');
$file->setRawData('Hello World');

$encoded = $file->getRawData(true);
//$encoded is now the string 'SGVsbG8gV29ybGQh'
//By supplying true as second parameter to the method File::getRawData(), the method will encode given data

$file = new File('my-img.png');
$file->writeEncoded();

//This will create new file with the name 'my-img.png.bin'

$file = new File('some-binary-with-encoded.bin');
$file->readDecoded();
$decoded = $file->getRawData();

$file = new File('some-pdf.pdf');
$file->read();
$file->view();

$file = new File('some-pdf.pdf');
$file->read();
$file->view(true);

$file = new File('some-big-movie-file.mp4');
$file->read();

//The size of each chunk will be 1500 bytes and they will be base 64 encoded by default.
$dataChunks = $file->getChunks(1500);

foreach ($dataChunks as $chunk) {
    //......
}