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...."Retrieve the values of cells.xlsx" ; // Retrieve the value in cell...cell A1. string value = GetCellValue ( FileName , "Sheet1" , "A1"...