Links

Links to some blogs that I enjoy:

Power Query 

Easy to intermediate

Excel on Fire: Solve problems with Oz du Soleil at his Youtube channel. Entertaining! 

Easy to advanced

ExcelGuru.ca: Mainly Power Query

Intermediate to advanced

CrossJoin: Microsoft Analysis Services, MDX, DAX, Power Pivot, Power Query And Power BI

Ivan Bonds Blog: Another good blog

The BI Accountant: Accountancy background but does everything

Ben Gribaudo: Some in-depth but clear articles on fundamental parts of power query

Excel & VBA

ExcelMacroMastery: General reference guide to VBA, straight forward, in depth & with diagrams

AnalystCave: Another great website, also has articles on topics not found elsewhere. 

FastExcel: Solving often quite general VBA problems with different solutions and then comparing their speeds

NewtonExcelBach: Excel, VBA, xlwings (Python) & Civil Engineering

QuantMacro: Finance, Statistics & Machine Learning with Excel, VBA and a bit of R

E90E50: Crazy charting with Excel

& for specific blog posts

k-Means Cluster Analysis in Microsoft Excel

The VBA Guide To ListObject Excel Tables