Free tool
A useful place to start, with a route to the related result.
Free tool
CSV header diff: find missing, added, renamed and duplicate columns between two files
Paste two CSV header rows, or read the header of two small files in your browser, and see missing, added and likely renamed columns, duplicate and empty headers and the delimiter. Nothing is uploaded.
Free tool
Pack and case unit-price calculator: compare supplier prices per single unit
Enter supplier price lines priced per unit, pack or case. Get the exact price per single unit, the working, and the lines whose pack basis is unclear. No floating point.
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