pdf, xls, doc... not show

[mash180]

Hi, the connector show image file only

My config: $MyConfig = [ 'sources' => [ 'Mis albumes' => [ 'root' => $MyRoot, 'baseurl' => $MyBase, 'createThumb' => true, 'extensions' => ['xls', 'doc', 'pdf', 'jpg', 'png', 'jpeg', 'bmp'],
'thumbFolderName' => '_tmb', 'excludeDirectoryNames' => ['_tmb', '.quarantine'] ] ] ];

On extensions I tried just with jpg, and it showed just jpg, then I added png and it showed both jpg an png, try just pdf and showed nothing.

It never show doc, xls or pdf files; already read the docs several times without get what I'm doing wrong.

Can someone point me on the right direction?

Thanks in advance.