The public API is still not stable and it is a very good idea to read release notes and migration guide before each update. Performance matters mostly for large files. For small files, few ms here or ...

Excel File (.xlsx) │ ┌─────────────────┐ │ Phase 1: Parse │ excel-parser.mjs reads cells, detects inputs/outputs, │ & Analyze │ identifies financial patterns (IRR, waterfall, DCF) └────────┬────────┘ ...