OCR XLSX converter still fails on legacy showZeroes sheet views #2400

Summary

XlsxConverterWithOCR still fails on legacy workbooks whose worksheet view uses the historical showZeroes attribute, even though the core XLSX converter was fixed for this in #2064.

The OCR converter calls pandas.read_excel(..., engine="openpyxl") / load_workbook() directly and does not run the core converter's scoped showZeroes -> showZeros repair first.

Reproduction on current main

I built the same malformed worksheet shape covered by test_xlsx_legacy_show_zeroes_sheetview: a normal workbook whose xl/worksheets/sheet1.xml contains:

<sheetView showZeroes="0" ...>

Local result against the current source packages:

core: ## Data | | hello | world | | | --- | --- |
ocr error: TypeError "SheetView.__init__() got an unexpected keyword argument 'showZeroes'"

So enabling the OCR plugin reintroduces a workbook compatibility failure that the normal converter now handles.

Proposed scope

If this is available to take, I can submit a focused OCR-side follow-up that reuses the same narrowly-scoped worksheet repair before openpyxl/pandas parses the workbook, plus a regression test derived from the existing core test. I would avoid broad XLSX refactoring.

I searched current PRs/issues for an OCR-specific showZeroes fix and found no matching implementation.

AI-assisted audit disclosure: found by comparing recent merged core fixes against sibling OCR converters; reproduction was executed locally against current source.