Input data formatting guidelines

Use this as a short checklist before adding data. Detailed normalization and validation rules are described in the detailed normalization and validation documentation.

• For CSV input, use utf-8 encoding (usually this is the default encoding).
• Excel files with different encodings are supported as this is internally translated to utf-8. We do not recommend to use other encodings than utf-8 due to possible encoding translation errors.
• For INT fields, values must be whole numbers. 5 and 5.0 are accepted, but 5.5 is rejected.
• We recommend using ISO date/datetime strings:
  • date: 2025-02-02
  • datetime: 2025-02-02T10:00:00Z Other formats are supported, see the detailed normalization and validation documentation.
• For BOOLEAN fields, use true or false strings (case-insensitive).
• If you use an extraction or transformation tool, check the tool documentation for additional input rules.
• For missing values (null/nan), leave the cell empty.
• FILE fields are not supported yet.