CSV TOOLS

CSV Editor

Open a CSV as a table, edit cells, and save the updated file. Processing stays on your device.

CSV file (up to 10 MB)

Choose fileNo file chosen

Input encoding

Protect spreadsheet formulas in downloaded cells

Edits stay in this tab. Formula protection may prefix values starting with =, +, -, or @; review the downloaded file. Processing is limited to 10 MB per operation.

How it works

Load a CSV, edit its headers or cells, then save it as UTF-8 with a BOM. Large tables are shown one page at a time. Each operation supports up to 10 MB.

Formula protection prefixes values that spreadsheet software might interpret as formulas. It can change product codes or negative numbers, so review the downloaded file.