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....esempio, se raggruppi i dati per Customer.CustomerID, puoi aggiungere...FileName = FilePath + "Grouping Data OLE DB.xlsx" ; //Create a connection...