Delete, reorder and rename columns of a CSV or Excel file, then download the result
Processed in your browser. Nothing is uploaded. Checked against sources on 17 Oct 2026.CSV Column Editor reads a CSV, TSV or Excel sheet in your browser, lists every column with a sample value, and lets you delete, reorder and rename them before downloading. A file of up to 100 MB keeps its format, delimiter and cell values, and nothing is uploaded.
Press Choose a CSV or Excel file, or drop it on the page; every column is listed with a sample value.
Untick the columns to delete, or press Remove empty columns.
Use the up and down arrows to change the order, and type a new name in any column box.
Check the preview, then press Download to save the file in the format it came in.
A spreadsheet export rarely has exactly the columns the next step needs. An import form wants five columns in a fixed order; a report from a shop or bank has forty, half of them empty. Doing this in a text editor breaks quoted fields, and opening a large CSV in Excel can change numbers such as phone numbers and long IDs.
What you can do.
| Action | How |
|---|---|
| Delete columns | Untick them |
| Delete every empty column | One press; the count is shown |
| Change the order | Up and down arrows on each column |
| Rename a header | Type in the column's box |
| Start over | Reset |
Each column shows a sample value taken from the first row where it has one, so a column called Field7 can still be recognised. A live preview shows the first rows of the result, and the page warns when two kept columns would share the same name.
What does not change. Values are copied exactly, cell by cell. A CSV is written back with its own delimiter, comma, semicolon, tab or pipe, and with proper quoting, so values containing commas, quotes or line breaks stay whole. An Excel file comes back as an .xlsx, with the numbers, dates and number formats of the kept columns unchanged; formulas are saved as their results.
When there is no header. Untick First row is a header and the columns are called Column 1, Column 2 and so on; the result is written without a header row.
Tested with 300 random plans of deletions, moves and renames against a separate projection, and CSV read back with another parser. Nothing is uploaded.
Drop the CSV on CSV Column Editor. Every column is listed with a sample value; untick the ones to delete and watch the preview change. Press Download and the new CSV keeps every other column, its delimiter and its quoting exactly as before.
Open the file here and use the up and down arrows beside each column until the list matches the order you need, for example an import template. The preview shows the first rows in the new order, and Download saves the rearranged file.
Yes. Type a new name in any column's box and the header row of the download uses it. The page warns when two kept columns would end up with the same name, which many importers and databases reject.
Yes. Drop an .xlsx and choose the sheet if there are several. The download is an .xlsx with the kept columns' numbers, dates and number formats unchanged. Formulas are saved as their calculated values, because the columns they refer to may have moved.
No. Values are copied exactly as text from a CSV, so a phone number such as 0044 or an ID such as 00123 keeps its zeros, and long numbers are not turned into scientific notation the way opening the file in Excel can.
No. The file is read and rewritten by your own browser; the result is created on your device. Customer lists, orders and financial exports never reach a server, and closing the tab clears everything.
Rates and rules change; check the source before you rely on a figure.
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Same job, other tools: Word to Plain Text – Take the words out of a .docx and leave the formatting · Markdown to Plain Text – Strip every Markdown mark and keep the words.