Track Weekly Time and View Yearly Totals from a Single Master Sheet

Managing granular timesheet data can be a challenge, especially when you need to track daily and weekly task time across multiple categories.

3 min readMicrosoft Excel | Help & Support with your Formula, Macro, and VBA problems | A Reddit Community

This user has been searching for help topics for a week. They've spelled out exactly what they need: a weekly timesheet that feeds into a master sheet, with daily subtotals, weekly subtotals, and a year-to-date view. The problem isn't that the task is too complex, it's that traditional spreadsheets make this kind of cross-sheet logic feel like a dead end. When you have to manually link every weekly cell to a master table, you're not managing data. You're fighting your own tool.

We see this pattern constantly. A user knows the structure they want: Monday through Friday, six task categories, a daily subtotal, a weekly subtotal, and a running YTD total on a separate sheet. That's a clear, repeatable system. But in a legacy spreadsheet, building that system means writing fragile formulas, copying them across dozens of sheets, and hoping nothing breaks when you insert a row or change a date. The user's apology, "sorry, but I've been looking through help topics", tells us everything. They feel like the failure is theirs. It isn't. The tool failed to meet them where they are.

An AI-native spreadsheet changes the relationship. Instead of the user translating their mental model into cell references and manual consolidation, the tool understands the intent. You describe the weekly table, the categories, and the master sheet in plain language, and the system handles the aggregation. The YTD total updates automatically because the master sheet isn't a separate manual copy, it's a live view of the same data. The user's time goes back to the work they're tracking, not to maintaining the tracker.

This is what progress looks like in practice. The user didn't ask for a "revolutionary" feature or a "game-changer." They asked for a reliable way to see their weekly hours add up to a yearly picture. That's a fundamentally human need: clarity about how small, consistent efforts accumulate. The technology should make that clarity effortless. When it does, the user stops apologizing for asking for help and starts focusing on what the numbers tell them. That's the only outcome that matters.

From Microsoft Excel | Help & Support with your Formula, Macro, and VBA problems | A Reddit Community

I need to create a weekly timesheet, where I can input daily and task time for 6 separate tasks, that will give a daily and end of week subtotal but also display YTD on a master sheet (to be submitted ).

To rephrase, I want my weekly sheet to go to a discrete table (M-F, w/ 6 categories) for each weekly cell, and display a categoric subtotal and global subtotal on a separate "master"

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