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Convert an intake sheet to CSV
Upload a label/value XLSX intake sheet (column A = field, column B = value) and get back a plain CSV file.
Your file is never uploaded — no account, no server round trip.
How it works
- 1.Choose an .xlsx intake sheet — field names in column A, values in column B.
- 2.FillOnce reads the first worksheet in your browser and converts it to CSV.
- 3.Download the CSV — nothing was ever uploaded.
Frequently asked questions
Does this upload my spreadsheet anywhere?
No. The XLSX file is read and converted entirely in your browser. Nothing is sent to a server.
What XLSX layout does this expect?
A label/value intake sheet — two columns, or a labeled column followed by a blank answer column. That covers most exported intake and form-data spreadsheets.
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