When we "Link to a file" any MS Office 2003 (.xls / .doc / .ppt), all works fine on our Moodle 1.6.4. You can see the related icon and it can open either inside the frame or in a new window.
Things are not working the same when linking to an MS Office 2007 file.
The icon in Moodle is the [html] icon in the course topics and an [interrogation mark] in the course storage area. When clicking on it, it either allows for a "Save/cancel" (if Office 2007 is not installed on the PC) or an "Open/Save/Cancel" of Office 07 is installed, but no correspondant icons next to the resource link in the course topics.
Any suggestion how to make Office 2007 files work exactly as Office 2003 in Moodle? Any update/plugin/files needed on the Moodle server side?