Hi Juliette
Thank you so far for your answer. Yes, the “xlt” are Excel-template-Files. It would be fine if these files are using also the general excel-icon. I’m not sure regarding your first advice “also need to copy the image files you’d want to use and rename them for using them with .xlt.”.
What I made: inserted “xlt” to (around) line 200 of
mimetypes-link-icons/mime_type_link_images.php.
This line looks now like this:
‘xls’, ‘xlsx’, ‘xlt’, ‘xml’, ‘xpi’,
And in the beginning of the file:
mimetypes-link-icons/css/style.php
with this: ‘xls’, ‘xlsx’, ‘xlt’, ‘xml’, ‘xpi’,
But this is not enough to work; the plugin don’t know to put the right excel-Icon.
Thanks for your help!
Dominik