碎片储存罐 让Fof Upload支持以下文件 .docx .doc .ppt .pptx .xls .xlsx application\/(vnd.ms-powerpoint|msword|vnd.openxmlformats-officedocument.wordprocessingml.document|vnd.ms-excel|vnd.openxmlformats-officedocument.spreadsheetml.sheet|vnd.openxmlformats-officedocument.presentationml.presentation|x-msi)