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....have to do is to change the formula =MOD(ROW(),2)=0 as =MOD(COLUMN()...the row index, modify the formula to retrieve the column index...