How to Use the Excel Column Extractor & Filter
- Upload your Excel spreadsheet.
- Check the column headers you want to keep.
- Click "Export Selected Columns" to download.
Key Features & Capabilities
- Visual column picker with live preview.
- Great for stripping sensitive PII columns before sharing data.
- Exports to CSV or XLSX.
Technical Architecture & Privacy
Excel Column Extractor & Filter is engineered with a focus on performance, mathematical accuracy, and maximum user privacy. Operating entirely in-browser on the client side, all processing takes place locally within your browser's JavaScript engine. None of your financial numbers, text entries, or private inputs are ever transmitted to or stored on remote servers.