Convert XLSX to CSV

Takes the first sheet out as plain text. Formulas are replaced by whatever value they last evaluated to, formatting is dropped, and other sheets stay behind - a CSV holds exactly one table and nothing else.

Drop XLSX file(s) to start

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What is XLSX?

A modern Excel workbook, which is really a zip full of XML. Unlike a CSV it knows what a number is, holds multiple sheets, and keeps formulas and formatting. It's what people mean when they say 'send me a spreadsheet'.

What is CSV?

The least glamorous and most durable data format there is: rows of values separated by commas, readable by every spreadsheet and database ever written. All its subtlety is in quoting - a value with a comma in it has to be wrapped in quotes, and a quote inside that has to be doubled.

Your files never leave your device · no magic required