Claude Code transcribes 24 invoice cells to Excel, fails on image PDFs
An office worker with no programming experience used Claude Code to transfer a fictional invoice into Excel. The program correctly matched all 24 cells of the line‑item section, covering product code, name, quantity, unit, unit price and amount. When the same invoice was converted to an image‑based PDF, the transcription stopped with a "Line item table not found" error, showing the tool’s…
What you can do with it
AI at Work →Draft invoice data into Excel with Claude Code
What you get You can convert PDFs to Excel and automate data entry.
Transcribes PDF line items into Excel.
- Who for
- marketers
- Cost
- Price not stated
- Effort
- minutes
- Already included in
- subscription plan Max
Use it for
- Transcribe invoices
- Convert PDFs to Excel
- Automate data entry
How to set it up · From the article
- Prepare fictional documents
- Create an answer key before running the AI
- Keep the AI output in its unedited state
- Compare with the answer key cell by cell
Watch out Image PDFs not supported yet
Claude Code in the tool directory · 8 changes covered
Key points from the news
- Claude Code accurately transcribed 24 invoice cells from a selectable-text PDF into Excel.
- The same program failed to process image-based PDFs, stopping with "Line item table not found".
- The test used a fictional invoice, 4 lines, 6 items per line, and was run on a Mac with Claude Code Max plan.
The test ran on a Mac using Claude Code in the Max subscription plan, Python 3, and pdfplumber 0.11.8. The worker followed a four‑step process: prepare fictional documents, create an answer key, run the AI, and compare the output. The article notes that OCR is required for image PDFs and that other document types were not tested.
The experiment highlights both the potential of AI for routine data entry and the need for careful verification before deploying such tools in real business workflows.
An office worker with no programming experience uses Claude Code to transfer invoices to Excel. 24 cells matched, but it stopped on image-based PDFs
note.com · 5 October 2026
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