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....XLT Excel 97–2003 template. XLTX Excel template. XLTM Excel macro‑enabled...macro‑enabled template. XLAM An Excel macro‑enabled add‑in file...