This is a source file
which should be moved to Wikimedia Commons at a later time. There are certain filetypes (ODP, ZIP, XCF and others) which typically function as source files and which, for security reasons, can currently not be uploaded to Wikimedia Commons
. Because source files are essential e.g. for re-use and modification of presentations, they are being temporarily uploaded to wikimediafoundation.org until a better solution (even an interim one as described on Commons:Restricted uploads
) can be implemented.