Focused purpose
What this tool does
Select, remove and reorder CSV or TSV columns locally. Preview the output schema, optionally rename fields and download without an account.
- ✓ Column selection
- ✓ Removal and reordering
- ✓ Optional renaming
- ✓ Output schema preview
Workflow
How to use it
- 01
Open the file and select needed columns.
- 02
Arrange and optionally rename them.
- 03
Review the output schema and export.
Available controls
Available options
- Check columns to keep.
- Drag them into output order.
- Rename selected output headers.
- Preview width and first rows.
Contact column extract
Example before and after
Only email and name are needed, in that order.
Before
id,name,email,internal_note 1,Ada,a@example.com,VIP
After
email,name a@example.com,Ada
Expected result: The output contains two reordered columns.
Practical scenarios
Common use cases
Share a minimal non-sensitive extract.
Match an import template.
Reorder columns for a downstream script.
HONEST LIMITS
Important limitations
- iRemoving a column discards it only from the exported copy.
- iComputed columns require a separate transformation.
FAQ
Questions about this tool
Can I change column order?
Yes. The export follows the exact order shown in the schema preview.
Can I rename extracted columns?
Yes. Renaming is explicit and the original header remains visible in the mapping.
Does extraction change the source file?
No. Only the downloaded copy uses the selected schema.