Excel & Bulk

Start here when the source of your barcode or QR job is a spreadsheet rather than a single value. These guides are for stock teams, small shops and anyone who needs many consistent outputs from existing rows. The first decision is what the rows represent: product identifiers, internal stock references or public links. A spreadsheet can hold all three, but the appropriate barcode format and validation rules differ. Choose that meaning before selecting a download format.

Read the preparation and leading-zero guides before generating a large batch. They explain why a value that looks right in a cell can still have been changed by spreadsheet formatting, scientific notation or a numeric conversion. Keep an untouched source copy and inspect a small representative set, including the longest value and any value that begins with zero. Generation should reveal unsuitable data rather than silently invent a repair.

Next, open the guide for your chosen format: Code 128, EAN-13 or QR. Follow its example with a few known rows in the existing Excel tool, then examine the downloaded workbook or image archive. Compare the encoded content with the original text and scan an actual output before expanding the batch. The cards below keep those steps together without mixing spreadsheet preparation with label-sheet geometry. If your next task is positioning finished codes on physical labels, continue to Labels & Printing after the source values are verified.