Supplier file cleanup
Best way to clean supplier CSV files before importing to Shopify
A practical comparison for small Shopify merchants who need to clean messy supplier CSV or Excel files before importing products.

Short answer
Manual cleanup can work for one small file. A dedicated cleaner is safer when supplier files repeat, columns change, or duplicate SKUs, barcodes, missing titles, and bad prices would be expensive to miss.
Option 1: manual spreadsheet cleanup
Spreadsheets are flexible and familiar, but they rely on the merchant remembering every Shopify import rule each time.
- Good for one-off edits.
- Risky for repeated supplier updates.
- Easy to miss duplicate identifiers or invalid prices.
Option 2: generic CSV tools
Generic CSV tools can reshape files, but they usually do not understand Shopify product fields or catalog-specific risks.
Option 3: feed or importer apps
Feed and importer apps can be useful for automation, but they may be broader than needed when the immediate job is cleaning a supplier file for review.
Where GrowthLine File Cleaner fits
GrowthLine File Cleaner previews supplier files, maps supplier columns to Shopify fields, validates risky product data, and exports Shopify-ready CSVs for merchant review.