This reader's question highlights a friction point that many spreadsheet users know well: the monthly ritual of opening a query, finding the folder path, and typing a new date. It is exactly the kind of manual chore that Power Query was built to eliminate. The cleanest answer is to let Power Query calculate the current month's folder name inside the M formula itself, without touching Excel's grid or a named range. That approach keeps the logic self-contained, portable, and refreshable. If you move the workbook to a new machine or share it with a colleague, the query still works because the path is built from the system clock, not from a cell someone might forget to update.
The specific pattern is straightforward. You start with the static part of the path, such as `MainFolder\`, then append the year-month string generated from `Date.ToText(Date.From(DateTime.LocalNow()), "yyyy-MM")`, and finally add `\Data`. Power Query's `DateTime.LocalNow()` returns the current date and time from the machine running the refresh, so the folder name always matches the current month. If your data arrives a few days early or late, or if you need to reference a different month, you can adjust the date offset inside the function, `Date.AddMonths` is your friend there. The point is that the logic lives entirely in the query, not in a helper cell that introduces a manual step and a potential failure point.
This approach also scales. If your folder structure changes to include a subfolder for each day or each week, you can modify the date formatting string to `"yyyy-MM-dd"` or build a filter that picks the most recent folder by name. The same principle applies: let Power Query derive the target from the current date, then let the folder navigation happen automatically. That is the difference between a spreadsheet that requires ongoing maintenance and a data pipeline that runs on its own.
For this reader, the immediate win is eliminating a repetitive error-prone task. The larger lesson is that Power Query is not just a tool for transforming columns; it is also a tool for managing the data source itself. When you treat the folder path as a dynamic value rather than a fixed string, you stop being the person who manually updates the path each month. You become the person who designs a process that works without you. That is the kind of productivity gain worth pursuing.