Excel Lab
A software engineer applying real engineering practice to spreadsheets.
Versioning
Every workbook lives in source control, same as application code — not a folder full of "final_v3_ACTUAL.xlsx" files.
Testing
Formulas and macros get verified against known inputs before they touch a real client file, not just eyeballed once and shipped.
Modular design
Reusable named ranges, functions, and templates — the same single-responsibility thinking that goes into a well-structured codebase.
Coming soon
Tax automation
CFDI and SAT workflow tooling for Mexican accountants.
Coming soon
Data pipelines
Power Query and dynamic-array driven reporting.
Coming soon
Reporting tools
Templated dashboards built for handoff, not one-off use.