Extensions permises: .jpg, .gif, .jpeg, .png, .zip, .tar, .rar, .doc, .xls, .xlsx, .docx, .pdf, .txt, .fla, .swf, .ai, .psd, .cert, .cer, .key, .req, .doc, .odt, .rtf, .xml, .docx, .xlsx, .sql, .pptx, .plain