CSV to Excel
Convert a CSV file to Excel (.xlsx) in your browser. Download a real spreadsheet — nothing is uploaded.
Extract CSV columns
Extract selected columns from a CSV into a new file in your browser. Keep only the fields you need.
Drop a CSV file here or click to choose
Extracted locally — nothing is uploaded
How to use Extract CSV columns
Extract one or more CSV columns into a new file. Select the columns to keep.
Everything runs locally in your browser — your files are never uploaded to a server.
Extract CSV columns FAQs
How do I extract columns from a CSV?
Drop a CSV, tick the columns to keep, then download a new CSV with only those fields.
Is extracting CSV columns free?
Yes. Every Excel and CSV tool on ReallyUseful.Tools is free to use, with no account or subscription required.
Are my files uploaded?
No. Files are processed in your browser on this device. Nothing is uploaded to our servers.
Can I remove columns instead of copying them?
Yes. Uncheck the columns you do not need; only checked columns appear in the download.
More Excel/CSV
Excel to CSV
Convert Excel .xlsx or .xls to CSV in your browser. Choose a sheet and delimiter, then download.
CSV viewer
Open and browse a CSV in a paginated table in your browser. No upload — view large files locally.
Merge CSV files
Combine multiple CSV files into one in your browser. Rows are stacked and headers aligned by name.
CSV to XML
Convert CSV rows into structured XML in your browser. Each row becomes an element — nothing is uploaded.