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October 16, 2026
.DOCX
Microsoft Word Open XML Document
Text Files
updated Jun 22, 2026

Files with the .docx extension contain formatted text documents, possibly with graphic elements, stored in a format native to Microsoft Word and introduced with Word 2007. .docx files are part of the Office Open XML (OOXML) specification, standardized as…

SIGNATURE504B0304"PK" - standard ZIP local file header
OPENS ONAndroidiOSLinuxMac OSmacOS
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