What is a .DOCX file?
DOCX is the modern Microsoft Word document format, stored as a zipped XML package.
- Did you know
- DOCX is Microsoft Word’s modern format, which replaced the binary .doc with Office 2007.
- The format is part of Office Open XML, standardised by Ecma International as ECMA-376 and later by ISO and IEC as ISO/IEC 29500.
- Its international standardisation was famously contentious, with the ISO fast-track vote becoming one of the most disputed in the body’s history.
- The final “x” in the extension signals the XML basis of the format, distinguishing the open package from the older binary .doc.
- Under the hood a .DOCX file is really a ZIP archive - rename it to .zip and you can browse the files inside.
- What Analyser shows you
- Open and read Microsoft Office documents - modern Word, Excel and PowerPoint (DOCX, XLSX, PPTX), their template, macro-enabled and slideshow variants (DOTX, XLTX, POTX, DOCM, XLSM, PPTM, PPSX), and the legacy 97-2003 binaries (DOC, XLS, PPT) - plus the OpenDocument family in every shape: zipped and flat single-XML text, spreadsheets, presentations and graphics (ODT, ODS, ODP, ODG, FODT, FODS), templates (OTT, OTS, OTP, OTG), legacy StarOffice (SXW, SXC, SXD), and EPUB e-books, shown as page previews with selectable text, tables, sheets and slides.
- Open a .DOCX file
- Drag a .DOCX file onto the Analyser home page (or tap to pick one). It opens entirely in your browser - nothing is uploaded, there is no account, and it works offline once installed.