We just released Spreadsheet Retention Dashboard Generator — turn user activity csv into a formatted excel retention cohort table.

What it does

Reads a CSV of user signups and activity logs, then generates a formatted Excel workbook with a retention cohort matrix. For Python developers analyzing product usage without BI tools. Saves hours of manual spreadsheet work.

Features

  • Reads user signup dates and activity logs from CSV
  • Calculates weekly or monthly retention percentages
  • Generates a formatted Excel workbook with a cohort matrix
  • Applies conditional formatting to highlight retention trends
  • Exports a summary sheet with key metrics (e.g., overall retention rate)

Usage

retention_tool --signups signups.csv --activity activity.csv --output retention_report.xlsx --period monthly

Get it

Download Spreadsheet Retention Dashboard Generator for $29 →

Built by OddShop — Python automation tools for developers and small businesses.