You can upload documents on your website so that you can link to them from site pages or from various tool. 

To access Documents, login to the content manager, then go to Media > Documents.

The Documents area is separated into three different tabs: Documents, Add New, and Categories.

The documents tab shows you all documents you've already uploaded. Here you can also edit, delete, or grab links for your individual documents.

You can use the Add New tab to upload new documents. Supported file formats include: .doc, .pdf, .xls, .xlsx, .zip or .ppt.

You can create document categories to organize your documents. Your website can also be set up to automatically display documents belonging to a specific category on a page.