In a previous post, we looked at some of the limitations of XLOOKUP() and other Excel "duct tape" lookup functions. Relational joins in Power Query were introduced as a more robust alternative. This …
How to understand relational joins in Excel Power Query
In my book Advancing into Analytics I called VLOOKUP() the "duct tape of Excel:" Technology tactics move quickly. Excel now offers XLOOKUP() as a modern alternative to VLOOKUP(). But the theories …
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How to use the SWITCH() function in Excel Power Pivot
It's amazing to think that everything we do on our computers (at least for now) is powered by a series of True/False states. And while most of these operations are done behind the scenes, there's …
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How to load a data model from Excel to Power BI
One of the best things about Power Pivot and Power Query is that once you've learned how to use them in Excel, you can easily transfer that knowledge to Power BI: But not only do your skills …
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How to transform columns in Excel Power Query
When working with tables of data in Power Query, any operation by definition has to involve either operating on rows or columns of a table. A previous post showed some typical techniques for working …
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You’re probably storing your data in Excel the wrong way
We've probably all heard by now that data professionals spend 80% of their time cleaning data. But why? It's true that in data analysis, some assembly is required -- whether to meet the assumptions of …
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