Accepted file types: doc, docx, xls, xlsx, ppt, pptx, jpg, png, gif, pdf, Max. file size: 3 MB.
The types of file extension are limited to DOC, DOCX, XLS, XLSX, PPT, PPTX, JPG, PNG, GIF, PDF. The size of file must not exceed 3 MB. The length of file name should not exceed 50 characters.