Microsoft Office Excel - Microsoft Office Excel is a commercial spreadsheet application.
wikiHow - wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual.
Google Sheets - Synchronizing, online-based word processor, part of Google Drive.
Blurtit - Blurtit is a Q&A website. You can ask a question or answer on any question.
Apple Numbers - Numbers lets you build beautiful spreadsheets on a Mac, iPad, or iPhone — or on a PC using iWork for iCloud. And it’s compatible with Apple Pencil.
Ask Me Help Desk - Ask Me Help Desk is a question-and-answer site.