Working with CSV files

Updated on Aug 28, 2026

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What is a CSV file?

CSV stands for Comma-Separated Values. It is a plain table of data: one row per product, one column per piece of information — title, price, quantity, SKU, image link, and so on.

Any spreadsheet program opens a CSV file: Microsoft Excel, Google Sheets, Apple Numbers. Because it is a standard format rather than one company’s format, almost every e-commerce platform, ERP, accounting package and inventory system can produce one — which is what makes it the simplest way to move product data between systems.

In Nembol, a CSV file is how you can work with many products at once instead of one at a time.

What you can do with CSV files in Nembol

  • Import products into Nembol. Bring in your whole catalog from an ERP, an accounting system, another e-commerce tool, or from a file you build yourself. Your raw product data becomes products ready to be listed across your channels.
  • Export products out of Nembol. Download any selection of products as a CSV file, to keep a copy of your catalog or to work on it offline.
  • Bulk edit everything. Export your products, change them in a spreadsheet, and import the file back. You can edit titles and descriptions, prices, inventory and SKUs, pictures, codes, tags and variations, weight and dimensions — for hundreds of products in one pass.
  • Light edit your inventory data. Update only quantity, price, barcode and ASIN, matched by SKU code, leaving every other field untouched. Available from the Enterprise plan.

If you only need to change the same field on a group of products, you may not need a CSV at all — see central product editing.

Before you build your first CSV

  • Start from the Nembol template. Download the free CSV template and paste your data into it, or export products you already have in Nembol and edit those.
  • Never change the column titles. They must stay exactly as they are in the template, in lowercase — in a CSV file, Title and title are two different things.
  • Save the file using ; as the separator when your spreadsheet program asks.
  • Images go in as links, not files. Host them somewhere that gives a public link — Dropbox, Cloudinary or Google Photos — then paste the links into the image columns. See how to add images to your CSV file.
  • Some columns are required. Import CSV file lists what each column does and which ones you cannot leave empty.
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