SQL Cell brings a real SQL engine into Google Sheets™. Attach a file, write a query, and send the answer straight into your spreadsheet. It runs DuckDB inside the sidebar, so your files are read where they sit. Nothing is uploaded — there is no server to upload to. WHAT YOU CAN QUERY CSV, TSV, Parquet, JSON, JSONL, Excel, Avro, Arrow, XML, YAML, Markdown, Shapefile, GeoJSON, GeoPackage, KML, Power BI models and more — around 35 formats. Read them from your machine, from any HTTPS URL, or straight out of S3, Cloudflare R2 and other S3-compatible storage. No conversion step, no import, no size limit to work around. WHAT YOU GET • Real SQL — joins, CTEs, window functions, aggregates. Not a simplified dialect. • A preview before anything is written. Check the rows and the destination cell, then insert. • An overwrite guard. If cells are in the way, SQL Cell counts them and asks first. • Column profiling. See ranges, distributions, unique counts and nulls before you write a line of SQL. • Provenance. Every result remembers the query that produced it, readable in the formula bar months later. • History. Every result in the workbook, listed — jump to it or run it again. • Scale. Millions of rows queried in seconds; large results written in one pass with live progress. HOW IT IS DIFFERENT Most SQL add-ons are database connectors: you supply credentials and query a remote server. SQL Cell queries files, wherever they live — a folder on your machine or a bucket in S3. Nothing to configure, no connection to maintain, and it works on files a spreadsheet cannot open at all. PRIVACY All processing happens in your browser. SQL Cell has no backend, contains no analytics, and never transmits your spreadsheet contents or your files anywhere. Details: https://sqlcell.com/privacy-policy/ Getting started: https://sqlcell.com/guides/getting-started/