Data Entry & Extraction
Pull structured data from unstructured text instantly.
Data Entry & Extraction
One of AI's genuine superpowers: turning messy, unstructured text into clean, structured data. Tasks that used to take an intern all day now take 30 seconds.
Extracting Data from Text
The basic pattern — tell AI what fields you want and what format to use:
"Extract the following information from this email/document and format as JSON:
- Company name
- Contact person
- Email address
- Phone number
- Requested service
- Budget mentioned
- Timeline
If any field is not found, use 'N/A'.
If you're unsure about an extraction, add a confidence note.
Document: [paste text]"
Invoice Processing
"Extract line items from this invoice text and format as a table:
| Item | Quantity | Unit Price | Total |
Also extract: Invoice number, date, vendor name, subtotal, tax, and grand total.
Double-check that line items add up to the subtotal. Flag any discrepancies.
Invoice: [paste invoice text]"
The "double-check the math" instruction is critical — AI sometimes misreads numbers.
Business Card / Contact Parsing
"Parse these business card details into a contact database format:
[paste business card text or multiple cards]
Format: CSV with columns: First Name, Last Name, Title, Company, Email, Phone, Address, LinkedIn URL
If a card has multiple phone numbers, use the mobile number for the Phone column and note others in a Notes column."
The Batch Processing Pattern
For processing many items at once, always provide an example first:
"Process each entry below. For each one, extract: name, date, amount, and category.
Example:
Input: 'Paid $450 to ABC Plumbing on March 15 for bathroom repair'
Output: Name: ABC Plumbing | Date: March 15 | Amount: $450 | Category: Home Repair
Now process these entries:
1. 'Bought $89 of office supplies at Staples on Tuesday'
2. 'Monthly Spotify subscription $14.99 charged Jan 1'
3. 'Dinner with client Sarah at Olive Garden $127.50 on 3/10'
4. 'Paid quarterly insurance premium $2,400 to State Farm'
5. 'Gas station fill-up $62.18 Shell on Highway 101'"
Cleaning Messy Data
Real-world data is never clean. AI handles the mess:
"This spreadsheet data has inconsistencies. Standardize it:
- Names: First Last format, proper capitalization
- Phone numbers: (XXX) XXX-XXXX format
- Addresses: Full format with ZIP code
- Dates: YYYY-MM-DD format
- Remove duplicates (keep the most complete entry)
Data: [paste messy data]"
Transforming Between Formats
"Convert this data from [format A] to [format B]:
- JSON to CSV
- Email thread to structured table
- Meeting notes to Jira tickets
- Resume text to database fields
[paste data]"
Tips for Accurate Extraction
- 1.Always specify the output format (JSON, CSV, table, etc.) — ambiguity kills accuracy
- 2.Provide one example for complex extractions — AI learns your expectations
- 3.Ask AI to flag uncertain extractions with a confidence indicator
- 4.Always verify extracted numbers — AI occasionally misreads or transposes digits
- 5.For critical data, ask AI to double-check itself: "Review your extraction above. Did you miss anything or make any errors?"
- 6.Chunk large datasets — Process 20-50 items at a time, not 500
Exercises
0/4Find a real receipt, invoice, or email with data in it. Use AI to extract all data into a structured JSON format. Check every field against the original — how accurate was the extraction?
Hint: Try a receipt with at least 5 line items. Check the math on totals — that's where AI most commonly makes mistakes.
Create a batch processing prompt that converts 5 informal expense descriptions into a structured expense report table with columns: Date, Vendor, Amount, Category, Payment Method.
Hint: Make up realistic entries like "coffee meeting with client $12 at Starbucks." Always provide one example for AI to follow.
Why should you always provide an example when using the batch processing pattern?
When extracting critical data, you should ask AI to _______ itself to catch missed items or errors.