Ms word PhpWord：加载模板并另存为Word文档将删除表格/单元格边框

如果我加载一个模板，甚至是一个直接的文档作为模板，除了保存它什么都不做，它会删除表格/单元格边框

这是我的密码：

$this->word = new PhpWord\PhpWord;
$this->template = $this->word->loadTemplate('path/to/template.dotx'); // this could be a .docx - same results
$templatefilepath = $this->template->save();
$word = \PhpOffice\PhpWord\IOFactory::load($templatefilepath);
$writer = PhpWord\IOFactory::createWriter($word, 'Word2007');
$writer->save('/path/to/worddoc.docx');

// Output all necessary headers...

echo File::get('/path/to/worddoc.docx'); // (Lumen)

这会将模板另存为Word文档，但会去掉所有表/单元格边框