Difference between pages "Excel Spreadsheet (XLSB)" and "PowerPoint Presentation (PPT)"
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| − | The ''' | + | The '''PowerPoint Presentation (PPT) file format''' has the '''.ppt''' extension. This file type originates from [[Microsoft PowerPoint]]. However, other presentation software can be used to display these files as well. These include: |
| − | * [[OpenOffice]] | + | * [[WordPerfect]] |
| + | * [[OpenOffice]] | ||
== MIME types == | == MIME types == | ||
| − | + | == File signature == | |
| − | + | [[Microsoft PowerPoint]] presentation of version 97-2003 use the [[OLE Compound File]] (OLECF). These files therefore have the OLECF file signature | |
| − | + | ||
| − | == File | + | The object stream of the OLECF containing a PowerPoint presentation contains the string "PowerPoint Document" with some version. |
| + | |||
| + | == PowerPoint 97-2003 presentation == | ||
| + | |||
| + | The PowerPoint 97-2007 Binary File format is stored in the OLECF using multiple streams: | ||
| + | * ... stream | ||
| + | |||
| + | == Encryption == | ||
| − | [[ | + | See [[Word Document (DOC)]]. |
| + | Note: perhaps this section should be moved to a separate section about Microsoft Office encryption | ||
== See Also== | == See Also== | ||
| − | [http://download.microsoft.com/download/0/B/E/0BE8BDD7-E5E8-422A-ABFD-4342ED7AD886/ | + | [http://download.microsoft.com/download/0/B/E/0BE8BDD7-E5E8-422A-ABFD-4342ED7AD886/PowerPoint97-2007BinaryFileFormat(ppt)Specification.pdf PowerPoint 97-2007 Binary File format by Microsoft] |
[[Category:File Formats]] | [[Category:File Formats]] | ||
Latest revision as of 11:55, 5 June 2009
The PowerPoint Presentation (PPT) file format has the .ppt extension. This file type originates from Microsoft PowerPoint. However, other presentation software can be used to display these files as well. These include:
Contents |
[edit] MIME types
[edit] File signature
Microsoft PowerPoint presentation of version 97-2003 use the OLE Compound File (OLECF). These files therefore have the OLECF file signature
The object stream of the OLECF containing a PowerPoint presentation contains the string "PowerPoint Document" with some version.
[edit] PowerPoint 97-2003 presentation
The PowerPoint 97-2007 Binary File format is stored in the OLECF using multiple streams:
- ... stream
[edit] Encryption
See Word Document (DOC). Note: perhaps this section should be moved to a separate section about Microsoft Office encryption
