Extract columns from CSV

Extracting CSV columns creates a smaller table containing only the fields needed for a particular report, import, analysis, or handoff. It is useful for removing sensitive information, simplifying wide exports, preparing mailing lists, and matching the column order required by another application.

FileGizmo performs the extraction entirely inside your browser. Select a CSV file, enter the exact header names you want to keep, and download the focused result. Your source data is never uploaded or stored remotely.

Selected columns appear in the same order in which you enter them, allowing you to rearrange a dataset while extracting it. FileGizmo validates every requested name against the original header row and reports missing columns instead of silently producing incomplete output. All source rows remain in their original order. Quoted values, multiline cells, Unicode text, semicolon-separated files, and tab-separated data are handled by the shared CSV processing worker, keeping the interface responsive while larger files are processed locally.