About Numstro
What Numstro Is
Numstro is an AI-powered Excel formula assistant that helps you write, understand, and build confidence with Excel formulas. Whether you're a beginner learning your first formulas or an experienced user working with complex spreadsheets, Numstro makes Excel formulas accessible.
Our Purpose
Excel formulas can be intimidating. Numstro exists to bridge the gap between what you want to accomplish and the Excel formula that gets you there. We believe everyone should be able to leverage the power of Excel formulas without memorizing syntax or spending hours in documentation.
How Numstro Works
Upload your spreadsheet
CSV or Excel files up to 1,000 rows
Ask your question in plain English
Describe what you want to calculate
Get a formula that matches your data
Ready to copy and paste into Excel
Formula Builder
Upload your spreadsheet data and ask questions in plain English. Numstro analyzes your columns and data structure to generate accurate Excel formulas tailored to your exact needs.
Formula Explainer
Paste any Excel formula and get a clear, plain-English explanation of what it does and how each argument works.
Function Library
Browse comprehensive guides for Excel functions with syntax, examples, common pitfalls, and related functions.
Privacy
Numstro is designed with privacy in mind. When you upload data or paste formulas, we process them to generate formulas and explanations. We do not store your spreadsheet data or formulas. All processing happens in real-time, and your data is not saved on our servers.
Contact & Support
Have questions or feedback? We'd love to hear from you. For support inquiries, please reach out through our contact form or email.