Enumeration Accept

The type of the response: application/powerpoint, application/mspowerpoint, application/x-rtf, application/json, application/xml, application/vnd.ms-excel, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-powerpoint, application/vnd.openxmlformats-officedocument.presentationml.presentation, application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document, application/vnd.oasis.opendocument.spreadsheet, application/vnd.oasis.opendocument.presentation, application/vnd.oasis.opendocument.text, application/pdf, application/rtf, text/html, text/json, text/plain, text/richtext, text/rtf, or text/xml. A character encoding can be specified by including a charset parameter. For example, 'text/html;charset=utf-8'.