Cleans, restructures, and analyzes messy spreadsheet data - deduplicating rows, fixing broken headers, standardizing date/number formats, building formulas, and creating pivot-style summary tables. Make sure to use this skill whenever the user uploads a spreadsheet, mentions Excel, Google Sheets, .x
Cleans, restructures, and analyzes messy spreadsheet data - deduplicating rows, fixing broken headers, standardizing date/number formats, building formulas, and creating pivot-style summary tables. Make sure to use this skill whenever the user uploads a spreadsheet, mentions Excel, Google Sheets, .xlsx/.csv files, messy data, formulas, VLOOKUP/XLOOKUP, or wants a data cleanup, summary table, or qu