1CoreLab Spec Validator

Validate spec Excel files (MCD-NNN.xlsx)

🔒 100% Private — Nothing Leaves Your Computer
This tool runs entirely in your browser. Your spreadsheet is never uploaded to any server. No data is sent over the internet. Everything stays on your machine.
📄 Drop your spec file here or click to browse

Accepts .xlsx, .xlsm, .xls files

Filename must match pattern: MCD-NNN (e.g. MCD-008.xlsx)