load could not do append

[HananAbulDahab]

hello.doc.zip
samples.zip
This is:
I do 2 things:
1- in Sample_01_SimpleText.php
change word2007 to htmlif I did not do this change it could not save.
$objWriter = \PhpOffice\PhpWord\IOFactory::createWriter($phpWord, 'HTML');
$objWriter->save('/var/www/html/helloWorld.doc');
2- in Sample_11_ReadWord2007.php
$phpWord11 = \PhpOffice\PhpWord\IOFactory::load("/var/www/html/hello.doc","HTML");
It could not append in this file I need to append
saveAs does not work

Thanks

Context

• PHP version: 7
  PC:linux mint
• PHPWord version: 0.14