Add Checkbox Style (Xlsx and Html only)#4781
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oleibman merged 6 commits intoPHPOffice:masterfrom Jan 19, 2026
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Fix PHPOffice#4280, an issue with many problems; this is the last one (PR PHPOffice#4281 and PR PHPOffice#4677 dealt with other aspects of the problem). New releases of Excel allow representing TRUE/FALSE as a checked/unchecked checkbox. This requires a change to Styles, as expected. But Excel has implemented it in such a manner that changes are also required to Content_Types and workbook.xml.rels; and a new xml file propertyFeatureBag is also required. Seems like a lot of work for such a small change. A new property is added to Style, but only Xlsx Reader and Writer support it; no other format does.
Use Unicode characters U+2610 (Ballot Box) and U+2611 (Ballot Box with Check).
oleibman
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Fix #4280, an issue with many problems; this is the last one (PR #4281 and PR #4677 dealt with other aspects of the problem). New releases of Excel allow representing TRUE/FALSE as a checked/unchecked checkbox. This requires a change to Styles, as expected. But Excel has implemented it in such a manner that changes are also required to Content_Types and workbook.xml.rels; and a new xml file propertyFeatureBag is also required. Seems like a lot of work for such a small change. A new property is added to Style, but only Xlsx and Html Reader and Writer support it; no other format does.
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