SplitForge Blog
Professional guides for file processing, data workflows, and scaling beyond Excel's limits
Explore Free ToolsAI-Ready Data Checklist: 10 Things to Verify Before Upload (2026)
Before uploading to ChatGPT, Claude, or a fine-tuning API, run through this 10-point checklist. UTF-8 encoding, clean headers, PII removed, size within limits.
Convert Excel to JSON for AI APIs and LLM Pipelines (2026)
AI APIs and LLM pipelines expect JSON, not spreadsheets. Fine-tuning needs JSONL; direct prompts take arrays. Convert locally — no upload, no conversion server.
Prepare Data for AI: The Complete Guide (Privacy-First, 2026)
How to prepare a CSV or Excel file for ChatGPT, Claude, or an AI API — encoding, PII, format, size, and privacy. The complete local-first prep workflow.
How to Remove PII From a CSV Before Using AI (Locally, No Upload)
If your CSV has names, emails, or account numbers, mask those columns locally before upload — all three consumer AI plans train on uploads by default.
What's a Token? Why Your Spreadsheet Is 'Too Big' for AI (2026)
A token is roughly four characters of text — the unit AI reads your data in. Your spreadsheet is 'too big' for two separate reasons most people conflate.
Summarize a Huge CSV Before Sending It to AI (Aggregate First)
For trend questions, aggregate your large CSV before AI upload — not split. A 2M-row file becomes 24 monthly rows the AI can reason over in one prompt.
Showing 6 of 296 articles
Stay Updated
Get notified when we publish new guides on file processing and data workflows