group-by-analysis

To group Excel data and calculate percentages, this Skill cleans text fields, applies category mapping, and aggregates counts and sums to compute share values, appending a total row for your summary report.

Creating a bar chart from Excel data with Chinese font support involves rendering chart labels using configurable fonts, then exporting a styled Excel workbook via openpyxl with labeled values and basic formatting.

Cleaning messy Excel data before grouping requires forward-filling missing group columns, removing unwanted characters using regex, and applying category mapping to create a standardized grouping tag for aggregation.

Yes, you can visualize multi-sheet Excel data and export a styled workbook using openpyxl, generating a bar chart image and a formatted summary_report.xlsx file with optional highlighting for notable rows.

Yes, this tool works for operational reporting tasks like cohort summarization and distribution analysis, transforming multi-sheet Excel spreadsheets into dashboard-ready extracts with computed totals and percentages.

The best way to automate Excel data cleaning and groupby aggregation is using pandas-style preprocessing combined with regex cleanup and forward-fill, producing presentation-ready visual summaries and formatted Excel reports.