spreadsheet

# Spreadsheet Use this skill when Thomas needs to work with CSV, TSV, or Excel files where structure, formulas, or formatting matter. ## Workflow 1. Inspect the workbook or table shape and understand what must be preserved. 2. Apply the requested edits or analysis with spreadsheet-aware tools. 3. Validate formulas, references, and formatting after changes. 4. Summarize the resulting calculations, data changes, or workbook outputs clearly. 5. Call out any assumptions or formula risks that deserve review. ## Rules - Do not flatten structured spreadsheets into raw text when workbook semantics matter. - Preserve references and formatting where the task depends on them.