I don't think Excel is suitable for people at such a young age, but if you want your child to develop, you should look into counting worksheets 1-10 https://wunderkiddy.com/material/count-items-up-to-10 that will really help.
Indeed, on the web there are countless tutorials for children. On youtube for example there are many audiovisual tutorials that can help children learn from the parts of a spreadsheet to make graphics and print in excel.
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