Split Large Excel Product Catalogs for Marketplace Bulk Uploads

Marketplace bulk upload tools — Shopify, Amazon Seller Central, Google Merchant Center — all enforce row limits on Excel and spreadsheet imports. When your product catalog or order export exceeds those limits, Deliteful's row-split tool breaks it into upload-ready chunks without touching a line of data.

E-commerce managers dealing with catalogs of 10,000+ SKUs or monthly order exports from their OMS know the friction of marketplace upload limits firsthand. Amazon Seller Central's inventory file templates cap at around 10,000 rows per upload. Google Merchant Center feed files have size and row constraints that vary by account. Shopify bulk product imports via CSV/Excel similarly choke on very large files. The workaround is always the same: split the file manually, which means 30–60 minutes of copy-paste work and a real risk of dropping the header row or losing row order.

Deliteful makes that workaround a 60-second task. Set your target rows-per-file to match the platform limit (e.g. 9,500 for a safe Amazon buffer), upload your master catalog export, and download numbered Excel files ready for sequential upload. The header row — your column mapping that the marketplace reads — is preserved in every file automatically.

How it works

  1. 1

    Create a free account

    Sign up with Google OAuth — no card required, live in seconds.

  2. 2

    Upload your catalog or order export

    Accepts .xlsx and .xls files exported from any ecommerce platform or OMS.

  3. 3

    Set rows per file to match platform limits

    E.g. 9500 for Amazon, or whatever your target marketplace specifies.

  4. 4

    Upload each chunk to the marketplace

    Download the ZIP and bulk-upload each numbered file sequentially.

Frequently asked questions

What row limit should I set for Amazon Seller Central bulk uploads?
Amazon's inventory file templates generally support up to 10,000 rows. Setting Deliteful to 9,500 rows per file gives a safe buffer for the header row and any platform-side counting differences.
Will my column headers be in every output file?
Yes. The header row is automatically replicated in every split file, which is essential for marketplace uploads that read column names to map fields.
Does splitting the file affect SKU data or product attributes?
No. Values are preserved exactly as they appear in the source file. Formulas resolve to their computed values; no data is modified, reordered, or dropped.
Can I use this for Google Merchant Center product feeds?
Yes, for Excel-format feeds. Split your master feed file to meet the feed size requirements, then upload each chunk as a supplemental feed or replace the primary feed sequentially.

Create your free Deliteful account with Google and turn your next oversized catalog export into platform-ready upload files in under a minute.