Class Libraries & REST APIs for the developers to manipulate & process Files from Word, Excel, PowerPoint, Visio, PDF, CAD & several other categories in Web, Desktop or Mobile apps. Develop & deploy on Windows, Linux, MacOS & Android platforms....//Insert the Total row with data, formula and formatting style. //It...cells [ totalrow , totalcol ]. Formula = "=SUM(E5:E" + totalrow ....