Observed arrival · 2026-11-12
Excel Supreme’s formula drills
An interactive set of spreadsheet exercises asks learners to enter formulas and explains what rule a wrong answer breaks.
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✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- People learning spreadsheet formulas through practice
- Worth noticing
- The grader identifies errors such as using typed numbers instead of cell references, rather than only marking an answer wrong.
Field notes
Exercises pair a named spreadsheet cell with a formula-entry bar, and the example feedback explains why =SUM(1200,1450,930) is rejected in favor of a range reference. The catalogue includes both formula topics—such as COUNTIF and VLOOKUP—and keyboard selection. The page describes the grader as running in the browser, with no file to open or upload.
Observed signals
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○OpenPublic substance visible
$PaidCommerce or pricing visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
ƒJavaScriptBrowser-side code central
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