Number Format Normalizer: methods and data limits

Parse localized numbers, currencies and percentages with explicit rules.

Use the guide alongside the working tool.

Explicit working sample

id,amount
1,"€ 1.234,50"
2,"(€ 25,00)"
3,"12,5%"
4,"bad data"

Parse localized numbers, currencies and percentages with explicit rules. Separators and optional currency text must match your chosen convention. Grouping must use blocks of three digits. Parentheses can denote negatives; percentages optionally become decimal fractions. Invalid or unsafe large integers are reported rather than silently rounded. This does not calculate currency exchange rates.

Prepare the input

Parse localized numbers, currencies and percentages with explicit rules.

CSV, TSV and arrays of scalar JSON objects are supported. Identifiers stay text. Empty cells are missing by default; add special missing tokens only if their meaning is certain. Use the sample to inspect the exact workflow.

Review the method

Separators and optional currency text must match your chosen convention. Grouping must use blocks of three digits. Parentheses can denote negatives; percentages optionally become decimal fractions. Invalid or unsafe large integers are reported rather than silently rounded. This does not calculate currency exchange rates.

Keep the useful output

Review the summary and result records. Transformation tools retain separate change, rejected-record or diagnostics datasets where relevant. Choose the dataset before exporting; a report and a cleaned dataset serve different purposes.

CSV exports protect formula-like text. JSON keeps data portable without making an Excel workbook. Reports and editable backups may contain private source values; download only what you intend to share. No automatic account storage or server processing is used.

Ready to apply this workflow?

Try Number Format Normalizer →

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All practical guides →

Keep your original files and review the result. Found unclear instructions? Contact Team Hypomnema.