SheetTutor

SheetTutor is a free Excel learning resource built around interactive browser worksheets. It gives learners a place to practise spreadsheet formulas while working with example data, rather than only reading about a function. The site combines guided tasks, function references, original worked examples and downloadable practice workbooks. Its learning content is in English, and learners can start practising without creating an account.
The guided tasks connect a spreadsheet problem with the steps needed to work through it. Learners enter formulas in a worksheet, calculate results and check their answers. This makes the worksheet part of the lesson itself. A learner can use the task instructions to understand the intended result, try a formula and review the outcome before moving on to another exercise.
Function references provide another way into the material. Someone working on a particular formula can look up that function and study an example alongside its explanation. The references and practice activities serve different purposes: a reference helps with understanding a function, while a guided task gives the learner a specific problem to solve. The presence of a reference entry does not mean that every function has a complete guided lesson.
Original worked examples let learners inspect the relationship between sample data, a formula and its expected result. Interactive examples can be used to change inputs and observe what happens to the calculation. This supports focused practice: a learner can investigate one formula or one small set of values before returning to a larger task. The examples are intended as learning material, with concrete inputs and outcomes to examine.
Downloadable practice workbooks provide files for continuing the exercises outside the browser. They complement the online learning material without replacing the interactive tasks. SheetTutor can be used for individual study or considered as a supplementary resource by someone helping others build spreadsheet skills. It is a learning resource, not a claim of professional certification or a guarantee of workplace performance.
Existing free lessons and exercises remain permanently free. The aim is to make spreadsheet practice accessible through a web browser, with clear tasks, example data and opportunities to check results.