A balanced ledger can still feed an incomplete management report
A 38-month audit of 11,514 synthetic GL rows finds why old account mappings and department labels need explicit coverage checks. Script, hashes and omission tests included.
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Research and benchmarks
The chart and its embedded workbook can disagree. Check both.
A reproducible PowerPoint package test checks 88 chart/data items and catches two deliberate one-sided updates in a native management deck.
A no-edit openpyxl save removed this workbook’s query connection
We round-tripped two native Excel deliverables through openpyxl 3.1.5. One lost query parts; both lost saved formula values. Exact files, counts and a rerunnable test.
Windows ready is not Excel ready: a 30-cycle resume test
Measured stop/resume and Office-readiness results from one retained Panes Windows computer, with the timing boundaries and sample limits exposed.