Data Processing
Spreadsheets, analysis, conversion
44 cases
Cowork Failed to Download Videos 8 Times, Then Wrote Custom Code to Bypass the Lock →
User asked Cowork to scrape and combine videos. After 8 failed download attempts, Cowork autonomously wrote custom code to bypass the download lock and saved it as a reusable project instruction file
A Personal One Source of Truth for Email, Health, Taxes, Investments, and Family Info →
The author feeds Gmail, Apple Health, Downloads, screenshots, and family data into a Cowork-accessible folder, then updates local HTML dashboards for health, taxes, investments, tasks, and family information.
Log Meals by Dispatch and Let Cowork Update a Nutrition Spreadsheet →
The author created a health folder, spreadsheet, and skill in Cowork. From mobile Dispatch, a meal description becomes nutrition lookup, macro breakdown, spreadsheet rows, and advice against the day's remaining targets.
AI Jobs Globe in One Day: Cowork for Research, Scraping, Geocoding, and PRDs →
The author used Cowork to turn a vague market hunch into a full data product: company list, job scraping, office geocoding, logo assets, Supabase schema, and three PRD docs before handing implementation to Claude Code.
Financial Analyst Weekly Reports: 15 Hours Down to 1 Hour →
Financial services firm analyst automated weekly report generation with Cowork — data pulling, chart creation, report formatting. Reduced from 15+ hours weekly to under 1 hour with 90% error reduction
Migrate 3,674 ChatGPT Conversations to Claude →
Used Cowork to complete a 6-step migration workflow — export→parse JSON→group by topic→validate→upload→archive, organizing years of ChatGPT conversations into Claude Projects
Extract Stories and Tactics from Book for Keynote Speeches →
Bestselling author Chris Bailey used Cowork to scan his book "Intentional," extract every story and tactic ranked by interest level, and compare rehearsal differences via transcribed voice memos (13min vs 16min)
Monthly Bank Reconciliation with Auto Invoice Matching →
Cowork automatically extracted bank transactions, consistently renamed invoice files, categorized expenses, flagged missing invoices, and generated Excel reports. Saves a full afternoon every month
1099 Tax Form Data Extraction (98% Accuracy) →
Used Cowork to automatically extract data from 1099 tax forms with 98% accuracy. The 2% errors were formatting issues
Law Firm Contract Review Plugin: Clause-by-Clause Review with Traffic Light Flags →
Reed Smith law firm detailed three Cowork legal plugin features: clause-by-clause contract review (red/yellow/green flags), NDA triage for approval levels, and vendor agreement status verification. Maintains attorney oversight
Finance App Backup Transaction Summary →
Extract 14 months of transactions from a finance app backup and generate a summary table and report
Analytics Dashboard Data Extraction & Insights →
Let Claude navigate complex analytics dashboards, extract data, and generate easy-to-understand trend insight reports
Subscription Expense Audit & Cleanup →
Let Claude analyze credit card statements to automatically identify all subscription services and find potentially unused subscriptions
Receipt Organization and CSV Generation →
Organize chaotic receipt/invoice folder into structured CSV and rename files by date-vendor-amount format
Analytics Tool Data Query →
Dan Shipper had Claude browse PostHog directly without API or engineering support to query button clicks, returning 4,000 clicks
Analytics Platform Data Query →
Query click data from PostHog without API or engineering support
Podcast Episode Theme Analysis →
Lenny Rachitsky had Claude analyze transcripts from his 320 podcast episodes, extracting the 10 most important skills for the AI age in just 15 minutes
Receipt Screenshots to Expense Spreadsheet →
Auto-convert 50 receipt screenshots into an expense spreadsheet with categories and totals
Contract Key Information Extraction →
Extract key information like dates, amounts, renewal terms from multiple contracts
Professional Excel Spreadsheet Creation →
Generate professional Excel files with working VLOOKUP, conditional formatting, and multiple tabs
PDF Table Extraction to Spreadsheet →
Extract table data from PDF documents and convert to editable spreadsheets
Multi-CSV Analysis and Summary →
Analyze multiple CSV files, extract statistics and generate comprehensive summary reports
Document Version Comparison and Change Tracking →
Compare different versions of documents, highlight changes and generate diff reports
Customer Support Ticket Analysis →
Connect to support systems via MCP to analyze ticket trends, identify issue patterns and generate insight reports
Invoice Processing Automation →
Automatically extract invoice data, validate information and perform 3-way matching with purchase orders
Resume Screening and Candidate Comparison →
Batch screen resumes, extract key information and rank candidates based on job requirements
One-Shot Synthesis of 107 Mixed Documents →
Researcher Ethan Mollick gave 107 mixed-format documents (PPTs, Word docs, Excel) to Cowork for one-shot case synthesis. Described as a "breakthrough moment"
Batch Process 53 Business Cards to Excel Contacts →
Japanese developer test: Cowork processed 53 business card images in parallel, extracting 95 contact records to Excel with auto-adjusted column widths, confirming at each step
Inventory Data Organizer →
Organize inventory data, generate reports, and identify stock anomalies
Contact List Merger →
Merge contacts from multiple sources with smart deduplication
Log File Analysis →
Parse and analyze application logs to extract insights and identify issues
Batch Invoice Extraction →
Batch extract key information from multiple invoice PDFs or images into summary tables
Receipt Organization and Expense Tracking →
Convert paper receipts or photos into structured expense tables with auto-categorization
API Data Fetching and Processing →
Fetch data from REST APIs with automatic pagination, format conversion and local file saving
Financial Data Calculation and Analysis →
Process financial data, calculate profit, costs, margins and other metrics, generate financial analysis reports
Survey Data Analysis →
Analyze survey results to generate statistical charts and insight reports
Multi-Vendor Price Comparison →
Organize quotes from multiple vendors into structured price comparison tables
Data Deduplication and Cleaning →
Identify and handle duplicate records in data, clean invalid data, improve data quality
Batch Image Processing →
Batch process images with Cowork: compress, crop, watermark, and convert formats
CSV Data Analysis →
Analyze CSV data with Claude to generate statistical reports, visualizations, and insights
JSON to CSV Conversion →
Convert JSON data to CSV format with nested structure flattening and custom column mapping
PDF Table Extraction →
Extract table data from PDF documents and convert to Excel or CSV format
Merge Multiple Excel/CSV Files →
Merge multiple Excel or CSV files into one with intelligent structure matching
Screenshot Receipts to Spreadsheet →
Use Cowork to extract dates and amounts from receipt/bill screenshots and generate an audit-ready spreadsheet