File Extension WAFF File Format IE saved web page file format WAFF stands for IE saved web page file format. This was last updated in March 2012 By Margaret Rouse Browse File Extensions Alphabetically: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # Ask a Question. Find an Answer. Ask your peers a question about this file extension. Ask a Question Internet Explorer blocks Java as pop-up application dialog How are the graphics and images stored when you save a worksheet as a web page in Excel?