Importing Office documents with "Use the Office Document Viewer" generate an error in the WYSIWYG

org.xwiki.rendering.macro.MacroExecutionException: Invalid Transformation: missing Syntax 	
at org.xwiki.rendering.internal.macro.DefaultMacroContentParser.parse(DefaultMacroContentParser.java:83) 	
at org.xwiki.rendering.internal.macro.gallery.GalleryMacro.execute(GalleryMacro.java:105) 	
at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transformOnce(MacroTransformation.java:191) 	
at org.xwiki.rendering.internal.transformation.macro.MacroTransformation.transform(MacroTransformation.java:132) 	
at org.xwiki.wysiwyg.server.internal.plugin.importer.OfficeMacroImporter.render(OfficeMacroImporter.java:119) 	
at org.xwiki.wysiwyg.server.internal.plugin.importer.XWikiImportService.importAttachment(XWikiImportService.java:159) 	
at org.xwiki.wysiwyg.server.internal.plugin.importer.XWikiImportService.officeToXHTML(XWikiImportService.java:133)