The following MIME types have been added to the default MIME type list for Strict mode to allow in line download in build .5006 of the April 2012 CU:
application/vnd.ms-excel.addin.macroEnabled.12 application/vnd.ms-excel.sheet.binary.macroEnabled.12 application/vnd.ms-excel.sheet.macroEnabled.12
application/vnd.ms-powerpoint.addin.macroEnabled.12
application/vnd.ms-powerpoint.slideshow.macroEnabled.12
application/vnd.openxmlformats-officedocument.presentationml.presentation application/vnd.openxmlformats-officedocument.presentationml.slideshow application/vnd.openxmlformats-officedocument.presentationml.template application/vnd.openxmlformats-officedocument.spreadsheetml.sheet application/vnd.openxmlformats-officedocument.spreadsheetml.template application/vnd.openxmlformats-officedocument.wordprocessingml.document application/vnd.openxmlformats-officedocument.wordprocessingml.template
