Sheets

Choose the safest path.

• For .csv and .tsv:
  • You may use normal text-file workflows.
  • If the user wants analysis, prefer the data toolchain.
• For .parquet:
  • Prefer the data toolchain.
  • Do not attempt UTF-8 decoding.
• For .xlsx, .xls, .ods:
  • Do not pretend the workbook is directly readable if no converter is available.
  • Ask for a CSV export of the relevant sheet when exact cell inspection is required.

Set expectations for workbook files.

• If the user asks to inspect formulas, multiple tabs, or formatting from Excel files, say the current runtime does not have native workbook parsing in the core file tools.
• Ask for the specific sheet exported as CSV if needed.

Stay honest about scope.

• Do not fabricate sheet names, formulas, or hidden-tab content.
• If only partial tabular data is accessible, say exactly what was inspected.