Office Open XML file formats
The Office Open XML file formats are a set of file formats that can be used to represent electronic office documents. There are formats for word processing documents, spreadsheets and presentations as well as specific formats for material such as mathematical formulas, graphics, bibliographies etc.
| Office Open XML |
|---|
| Filename extension |
.docx, .docm |
|---|---|
| Internet media type |
application/vnd. openxmlformats-officedocument. wordprocessingml. document |
| Developed by | Microsoft, Ecma, ISO/IEC |
| Initial release | 2006 |
| Type of format | Document file format |
| Extended from | XML, DOC, WordProcessingML |
| Standard | ECMA-376, ISO/IEC 29500 |
| Website | ECMA-376, ISO/IEC 29500:2008 |
| Filename extension |
.pptx, .pptm |
|---|---|
| Internet media type |
application/vnd. openxmlformats-officedocument. presentationml. presentation |
| Developed by | Microsoft, Ecma, ISO/IEC |
| Type of format | Presentation |
| Extended from | XML, PPT |
| Standard | ECMA-376, ISO/IEC 29500 |
| Website | ECMA-376, ISO/IEC 29500:2008 |
| Filename extension |
.xlsx, .xlsm |
|---|---|
| Internet media type |
application/vnd. openxmlformats-officedocument. spreadsheetml. sheet |
| Developed by | Microsoft, Ecma, ISO/IEC |
| Type of format | Spreadsheet |
| Extended from | XML, XLS, SpreadsheetML |
| Standard | ECMA-376, ISO/IEC 29500 |
| Website | ECMA-376, ISO/IEC 29500:2008 |
The formats were developed by Microsoft and first appeared in Microsoft Office 2007. They were standardized between December 2006 and November 2008, first by the Ecma International consortium, where they became ECMA-376, and subsequently, after a contentious standardization process, by the ISO/IEC's Joint Technical Committee 1, where they became ISO/IEC 29500:2008.
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