Please see below code for your reference:-
@Html.EJ().FileExplorer("fileExplorer").FileTypes("*.pdf,*.png, *.gif, *.jpg, *.jpeg, *.docx").Path("~/content/images/FileExplorer/").AjaxAction(@Url.Content("/FileExplorer/FileActionDefault")).Width("900px").Height("400px").IsResponsive(true).EnableRTL(false).ShowThumbnail(false)
Thanks for your Help.....
Abhijeet