can you please atleast suggest some workaround for fix to avoid this behavior. since ie11 is majorly being used in all latest systems.

we are using AEM 6.3 , and we facing issue in rendering *.pptx,xlsx file and downlod as attachment in IE11, i.e content -disposition as attachment . it is not downloading as attachment. instead it is rendering as binary file. in other browsers it works fine.Please advice any solution for this issue....