The Answer Bank - The Answer Bank is the UK’s leading question-and-answer site.
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.
LibreOffice - Calc - LibreOffice Calc is the spreadsheet program you've always needed. A fork of OpenOffice.
AllAnswered - Your Team's Collective Brain All-In-One Knowledge Management System Wiki + Q&A + Workflow + AI
Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.