Tag: #json
4 articles
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Batch-process spreadsheet data with AI: xlsx → JSON → LLM
A practical pipeline for running an LLM over a whole spreadsheet: convert xlsx to JSON in the browser, send rows to Claude for classification or cleanup, and write the results back into the grid — with the Batch API for scale.
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From Excel to your app: extract structured data from xlsx as JSON
A practical pattern for turning user-uploaded Excel files into clean JSON your app can use — header detection, type coercion, multiple sheets, and posting straight to an API or database.
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Convert XLSX to JSON in the browser — no server, no upload
Turn an .xlsx file into JSON entirely client-side: lossless ReoGrid JSON for round-tripping, or plain data rows for your app. Practical code, files never leave the browser.
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Reading and writing Excel files in JavaScript — import, export, and JSON
How to load .xlsx files into the browser, export a grid back to Excel, and convert between xlsx and JSON — all client-side, with styles and formats preserved. Practical code with ReoGrid Web.