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Merge Etsy and Bonanza Sales Data for Spreadsheet Automation

Automating a recurring sales spreadsheet breaks the moment a platform's export headers don't match what the automation expects.

Why Etsy and Bonanza exports don't line up

Etsy: Sale Date, usually already in your local timezone; Item Total, Shipping, and Etsy fees as separate columns, before tax; a numeric Order ID shared by every item in the same order. Also, listing titles are included in full and often contain commas, which can shift columns if opened carelessly in Excel.
Bonanza: a sale date shown in the seller's account timezone; item price and a Bonanza final value fee that varies by advertising tier chosen per listing; an order ID unique to the marketplace. Also, fee amounts differ per listing based on optional ad placement, so two otherwise-identical sales can show different fee columns.

For spreadsheet automation, that mismatch is exactly what causes hours of manual cleanup every period.

Open CSV Experts and set your target columns once (Date, Channel, Order ID, Total).
Drop in your Etsy export and map its columns once.
Drop in your Bonanza export and map it the same way — both merge into one sheet, normalized.
Export as CSV or Excel. Same-layout files merge automatically next time.

No. Everything runs in your browser using JavaScript — your files are never sent to a server.

Yes. Add as many source files as you want; each distinct file layout is mapped once and remembered.