Learn how the reverse COUNTIFS method can simplify data checks, save time, and enhance your Excel skills with binary outputs. MS Excel data ...

Excel is packed with functions, but if you're still relying on VLOOKUP, nested IF statements, or CONCATENATE, you're making your spreadsheets harder to manage than they need to be. Microsoft has newer ...

Learn how to use Excel’s XLOOKUP to return data from non-adjacent columns, saving time and making your spreadsheets more ...

Have you ever stared at a tangled web of paired columns in your dataset—”Size 1/Value 1,” “Size 2/Value 2,” and so on, wondering how to make sense of it all? It’s a common frustration for anyone ...

retail_sales_data_pipeline/ ├─ data/ # raw & cleaned data (CSV/Parquet) ├─ duckdb_outputs/ # SQL outputs from DuckDB ├─ charts/ # generated charts ├─ extract.py # read raw CSV, preview data ├─ ...

Founded in 1920, the National Council of Teachers of Mathematics (NCTM) is the world's largest mathematics education organization throughout the United States and Canada.