Thread:Project:Support desk/unable to uload excel xls, ods, powerpoint ppt files on our site developed on mediawiki

Hello, We are unable to uload excel xls, ods, powerpoint ppt files on our site developed on mediawiki In localsettings.php we added the xls,ods,ppt files. the file gets uploaded but the structure of the files zigzag. It is not proper. the ip is 219.64.34.54 thank you sudhir borade