Office Open XML Spreadsheet Document, Strict, ISO/IEC 29500:2012

Unknown

other

Spreadsheet document file format conforming to ISO/IEC 29500:2012 of strict conformance class.

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Extensions	`.xlsx`
MIME types	`application/vnd.openxmlformats-officedocument.spreadsheetml.sheet`
Wikidata	`Q26207821`

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From Wikidata. Updated 2026-10-20.