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....xlsx',\n sheet_name='Sheet1',\n column_index=1...(\n name => 'test.xlsx',\n sheet_name => 'Sheet1',\n column_index...