Edit CSV Columns

Drop a CSV or Excel file

Edited on your device · nothing uploaded

Reshape a CSV or Excel file by its columns — rename headers, drag columns into a new order, remove the ones you do not need, split a column into several by a delimiter, or merge columns together. There is also a find & replace across all cells or one column. Everything happens in your browser, so the data never leaves your device.

It is the quick way to fix a column layout before importing a file somewhere that expects specific headers or a specific order.

How to edit csv columns

  1. Drop your CSV or Excel file.
  2. Rename, reorder or remove columns, and split, merge or find & replace as needed.
  3. Download the reshaped file as CSV or Excel.

Frequently asked questions

Can I reorder or rename columns?

Yes — rename any header inline and move columns left or right; the data moves with them.

Can I split one column into several?

Yes — pick a column and a delimiter (for example a space or comma) and it splits into new columns; you can also merge columns with a joiner.

Is my file uploaded?

No. All column editing happens on your device.

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