# #xlsx — MDRSS hashtag feed

> Public MDRSS cards tagged #xlsx.
> Canonical feed: https://mdrss.com/feeds/xlsx

## Cards (1)

### [XLSX creation, editing, and analysis](https://mdrss.com/software-craft/testing-and-documentation/901172/901172.md)

openpyxl writes formulas as strings with no cached values . Until you recalculate, every formula cell reads back as None to anything reading cached values — pandas, load workbook(data only=True), and most previewers. Use it to make implementation decisions and avoid common dead ends.

Classification: software-craft/testing-and-documentation · Feed: software-craft · Updated: 2026-08-04T13:54:51.641Z · Version: 1