The spreadsheet user who posted this question is asking the wrong thing. They want to know which Excel formula to use, XLOOKUP, MATCH, or some combination, when the real problem is that the tool they are using was not built for this job. We respect the instinct to reach for a familiar solution, but when you are manually wrestling timestamps into a weekday ledger by writing nested formulas, you have already lost the productivity battle.
This is the moment where many people double down on complexity. They learn one more function, build one more helper column, and call it progress. The question itself reveals the friction: "I'm drawing a complete blank on how to begin." That blank is not a failure of skill. It is the tool telling you that a traditional spreadsheet table, even with modern functions, is not designed to reshape raw data on the fly. You can force it with formulas, but every update to the source data will send you back to debugging. The user wants a living spreadsheet. A living spreadsheet should not require the user to perform surgery every time a new entry arrives.
An AI-native approach would start differently. Instead of asking which formula maps staff names to days, you would ask the table to understand the pattern: here is a list of timestamps, and here is the output structure I want, one row per person, columns for Sunday through Saturday, hours summed automatically. The AI handles the transformation. The user does not write a single XLOOKUP. The spreadsheet becomes a dynamic report that updates as data flows in, not a fragile formula chain that breaks when a column shifts. This is not about replacing the user's knowledge. It is about removing the friction between the question and the answer.
The practical takeaway is this: if you find yourself asking which formula to use for a routine data reshape, pause and consider whether the tool is working for you or against you. The user in this post knows exactly what they want, a consolidated, categorized weekday ledger. That clarity is valuable. The missing piece is not a better formula. It is a tool that takes that clarity and executes it without the manual overhead. The best approach is not a combination of XLOOKUP and MATCH. The best approach is to stop asking which formula works and start asking how to make the data do the work for you.