A focused spreadsheet assistant
DevByteClue is operated by Column ByteClue for people who know what they want to calculate but do not want to memorize every Excel function. Describe a task, provide a relevant table sample, and receive a formula with an explanation and a destination cell.
What it does
Generate, repair and explain formulas; parse XLSX and CSV locally; recognize a table screenshot after confirmation. English, Chinese and Japanese interfaces support desktop and mobile. We do not edit your original workbook or run Excel calculations.
A transparent service
AI is provided through Replicate using GPT-4.1. Live responses are labeled separately from authored examples. The service is supported by advertising and a free daily allowance; there is currently no paid plan. We are independent of Microsoft and do not claim Microsoft endorsement.