AA-SM-034 Angle Fitting – Niu Method October 14, 2014 3:01 pm The free spreadsheet has now moved location to Abbott Aerospace Check out our YouTube video and see how Engineers Check & Display their calculations in Excel Check and Display Your Math in Excel Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment.