| Practice | Why it matters | |----------|----------------| | Use Excel Tables, not ranges | Table references adjust automatically | | Avoid VLOOKUP – use XLOOKUP or INDEX-MATCH | Handles column insertions & leftward lookups | | Lock your master sheet | Prevents accidental breaking of links | | Name your links | Instead of =Sheet2!$B$3 , use =TaskOwner (Named Range) | | Document link paths | If linking across workbooks, avoid spaces in file names |

By mastering the 3W1H format and linking it to Excel, Emily became a data analysis rockstar, and her work had a significant impact on the company's customer satisfaction and loyalty.

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