17/06/2026
Excel’s backend is understandably complex. In-memory calculation engine with a structured data model. It treats spreadsheets as a DAG using XLSX to perform key functions. I never knew that.
And I don’t care. I just know what it can do for me, and how to use it. Question: Why do tech
companies spend an hour presenting the beauty of underlying tech when a businessperson
wants to know what it can do for them, why it matters, ease or difficulty of implementation and
use, and what kind of ROI they can be expected?