Prepare the two lists
Use an Excel workbook (.xlsx or .xls), a UTF-8 CSV, or a TSV. Keep one product per row and a single header row. You can choose the worksheet and header row for each list; they do not need identical column names.
Each list needs a product name or identifier, a price per pack, a pack quantity, a unit and a currency. Pack quantity, unit and currency can be declared once for a whole list when they are not in columns.
Map the meaning, not the position
Review the suggested mappings. Product name, price and ID columns may be in any order. For “6 × 500 g” cases, supply a pack quantity of 3000 with unit g, or 3 with unit kg. Do not enter 6 unless the unit really is each.
Keep identifiers intact. Store codes such as 00123 as text in Excel. Tabel trims surrounding spaces and compares exact identifiers; it does not remove leading zeros or punctuation.
Choose the decimal convention for text numbers: 1,234.56, 1.234,56 or Arabic separators. Native Excel numeric values retain their underlying value. A currency symbol is not a declaration of currency; use numeric prices and a separate ISO currency code.
Review identity and exceptions
Check “shared product IDs” only if the codes identify the same catalogue products across suppliers. Conflicting names, duplicate identifiers and similar names require attention. A manual match records your decision; it does not make incompatible units comparable.
Blank and invalid prices remain missing. Formula cells are flagged because Tabel does not run or trust spreadsheet calculations. Save a values-only copy, or edit a normalized value while retaining the original evidence.
Export a traceable comparison
The Excel report contains Comparison, Assumptions and Source evidence sheets. CSV exports offer the same three tables as separate downloads. Reports include all products, including rows hidden by the current on-screen filter.
Files are limited to 10 MB, 5,000 data rows per list, 80 columns and 20 sheets per workbook; compare up to five lists at once. PDFs, scans, password-protected workbooks and live spreadsheet links are not supported.
Start with your own lists.
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Compare your lists ↗Also useful: supplier quote comparison · supplier price-change review