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....; i < length ; i ++) { int index = random . Next ( allowedChars...codeVerifierChars . Add ( allowedChars [ index ]); } return codeVerifier =...