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About
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From the blog
Recent writing
- 5 November 2026 · 8 min
Excel Row Limit: 1,048,576 Rows and What to Do Past It
Excel holds 1,048,576 rows per sheet. What happens when a file has more, and four ways to work with every row: Power Query, splitting, Python and Mammoth.
- 4 November 2026 · 7 min
What It Takes to Give an AI Agent an Email Address
agent@mammoth.io lets anyone email Mammoth's AI agent a file and a sentence and get the answer back in the thread. Building it changed how I think about agents: identity, threads, what an inbox should be allowed to change, and why the work should come before the sign-up.
- 2 November 2026 · 8 min
How to Automate Excel Reports: 4 Ways, and Where Each One Stops
Four ways to automate Excel reports: Power Query, macros, Office Scripts with Power Automate, and Mammoth. What each one automates, and what it leaves to you.
Proof
Case studies
- 20 days → hoursStarbucks · to a usable sales picture
- 10xRethinkFirst · return on investment
- 19MUFG · countries on one standard
- 70%Bacardí · faster reporting
- 55%Arla Foods · less reporting time
- 200+BAT · products tracked daily
- 17kKantar · hours saved annually
- 80%NielsenIQ · faster processing
- 0PTI Digital · lines of code written
- 23Inspired Learning Group · schools on one standard
- 65%Golden Acre Foods · fewer manual checks
- 68%The Specialist Works · less prep time
- 50%Everest Detection · faster analysis
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