Ali Al hasani

can you help me in Arabic language translation
i upload the Arabic files but not working
http://www.mosanedary.com/%D9%86%D9%85%D8%A7%D8%B0%D8%AC/%D8%B5%D9%81%D8%AD%D8%A9-%D8%AA%D8%AD%D9%85%D9%8A%D9%84-%D8%A7%D9%84%D9%86%D9%85%D8%A7%D8%B0%D8%AC/

also me i upload files wp-content/plugins/download-manager/languages but front end and admin same before English interface ????