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.... FontColor = Color . FromArgb ( 0 x33 , 0 x33 .... FillFormat . ForeColor = Color . FromArgb ( 0 xCC , 0 xCC ...