Using IE8 .xlsx and .docx files being saved as xls and doc in SiteScape Forum

When using Microsoft Internet Explorer 8, if you access a SiteScape Forum entry with a Microsoft Office 2007 format attachment and choose to save the file to local system, the format is not kept intact.

For example, Spreadsheet.xlsx will save as Spreadsheet.xls. Similarly, Document1.docx will save as Document1.doc.

In order to correct this behavior the following changes must be made to both Internet Explorer and SiteScape Forum:

1. In Internet Explorer, Set Tools > Options > Security tab > Internet > Custom settings > Open files based on content, not extension to False. Restart Internet Explorer after saving changes.
2. Log into SiteScape Forum as wf_admin, and visit Manage the Zone > Manage Mime Type Mappings to add the following lines:
   application/vnd.openxmlformats-officedocument.spreadsheetml.sheet xlsx
   application/vnd.openxmlformats-officedocument.wordprocessingml.document docx
   application/vnd.openxmlformats-officedocument.presentationml.presentation pptx
3. After saving the above changes, visit an entry with a .docx, .xlsx or .pptx file and click on it. When prompted, choose to save on your desktop. Notice the file extension will now remain intact.