Overview When you connect Power Query / Power BI to a SharePoint site (or document library), there are (at least) two common M-functions you may see or use: SharePoint.Files(siteUrl as text, optional options as record) as table SharePoint.Contents(siteUrl as text, optional options as record) as table Although they sound similar, their behavior, performance, metadata returned, and navigation experience differ. Understanding their differences helps in building more robust and p

Hook:  If your model “mysteriously” changes numbers, breaks relationships, or sorts months alphabetically—blame data types. What we’ll cover:  where to define types (and why), the safest order of operations across the ETL chain, Power Query vs. Model vs. Table View, special cases (DirectQuery, currency, duration), and concrete, copy-paste examples. 1) Why data types matter (and where they live) Power Query (PQ):  Data shaping stage. Types here affect folding, transformations

Hook:  Hard-coded paths are silent project killers. Move a file, share a workbook, or publish a PBIX—and boom: refresh fails. Goal:  In ~10 minutes you’ll set up robust, parameter-driven paths for Excel (Power Query) and Power BI (Desktop & Service), plus a tiny, reusable M pattern you can paste into any project. 1) Why hard-coded paths fail When you embed "C:\Users\Alice\Project\data.csv" in a query, anyone whose files live elsewhere (e.g., D:\Work\Data\) will get errors. I

Excel users often seek efficient ways to retrieve data from large spreadsheets. Two powerful functions that stand out in this pursuit are...

Excel has been around for decades, but it’s still one of the most powerful tools for analytics, reporting, and automation. While most...

This post walks through the exact setup shown in your screenshots: folder-based CSV ingestion in Power Query, a tidy star schema, an FX...

Understanding Dynamic Drop-Downs Dynamic drop-down lists update their contents automatically based on user selections, eliminating...

1 Excel licensing (stand‑alone vs Microsoft 365/Office 2024) (German pricing comparison beneath every table) Plan/version Price (USD,...

Ever find yourself repeating the same steps in Excel? Copying, pasting, and formatting the same data daily can be tedious. It eats up...

Excel’s CONVERT function makes it easy to switch between different units of measurement. This handy tool is ideal for school assignments,...

Microsoft Excel has entered a new era with dynamic array functions  – a set of powerful functions in Excel for Microsoft 365 (and Excel...

Working with data in Excel is easy and even fun once you learn about Tables  and PivotTables . An Excel Table  is just a range of data...

In today’s data-driven world, knowing how to analyze and understand data is more critical than ever. Two prominent players stand out for...

Excel is one of those magical tools that can turn your data chaos into something organized and neat. But navigating its features can feel...

When it comes to Excel, preparation is key. The right setup before you dive into data crunching can save you hours later. Here are...

Did you see this picture before? If not, I guess it is time to take some Excel basics :=) Excel formula tab Here are my top functions...

This Power Query function  dynamically generates a calendar table  based on a given start date, end date, and fiscal year start month . It is designed to support time-based analysis  in Power BI by including key date attributes, fiscal calculations, and various helper columns. Power Query Calendar Function diagram illustrating parameter inputs for start date, end date, and fiscal start month, with outputs like date, fiscal year, ISO week, and day classifications such as weeke

In today's rapidly changing world, excelling at data analysis is crucial. From businesses to personal projects, the ability to navigate...