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....other formats, for example PDF or XLSX. Java // Set Multi‑Encoded...csv" , options ); // Save it in XLSX format workbook . save ( dataDir...