If you want to use the View File macro, or to view Office files attached to a Confluence page, you need the setup described below.
You can use any browser to view an Office file on a page or attachment view, provided that you have installed Adobe Flash Player version 9 or later. You do not need to have an Office application installed on your computer in order to view Office files in Confluence.
Confluence can display files compatible with Microsoft Office 97-2013, and PDF files, of the following types:
.doc and .docx.xls and .xlsx.ppt and .pptx.pdf