STEP 01 / 03
Open a source CSV
Start with the file whose columns need to change.
Choose a CSV fileQuoted commas and line breaks stay intact. CSV up to 10 MB.
No file selected
STEP 02 / 03
Map the output columns
Matching names are suggested. Unmatched fields export as blank columns until you choose a source.
STEP 03 / 03
Review the mapped CSV
What this mapper does
Rename, reorder, remove, or add blank output columns without opening a spreadsheet. Each output field points to one source column, so you can inspect exactly where its values come from.
What stays the same?
Cell contents and row order are preserved, including quoted commas and multiline text. The downloaded file uses UTF-8 and comma separators.
Need a specific import format?
For Etsy listings, use the Etsy to Shopify converter. To inspect a Shopify product file, use the Shopify CSV checker.