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wikiHow is a wiki based collaboration to build the world’s largest, highest quality how to manual. Our multilingual how to manual has free step-by-step instructions on how to do all types of things.

Help with Excel Functions and Formulas - Examples, Tips, Tricks and Common Errors

Udemy is a website that enables anyone to teach and learn online. Udemy tries to democratize online education by making it fast, easy and free to create online courses. Udemy is an open platform, so anyone can build an online course by posting videos...

Free tips and tutorials on creating and using formulas, functions, charts, and graphs in Excel and other spreadsheets. Resources for beginners and advanced level users.

Peltier Technical Services develops commercial and custom Excel add-ins for data analysis, charting, and reporting. This site has extensive tutorials and free add-ins.

Clemson University is a vibrant, student-centered community that thrives on leadership, collaboration, public service, relevant research and a winning spirit — in academics, athletics and life. A major science- and technology-oriented research univ...