Microsoft PowerPoint for Mac toolbar file
File type: Various data file
A .ttbs file is a toolbar file used by older versions of Microsoft PowerPoint for Mac.
It stores toolbar information for the PowerPoint application rather than presentation content.
File type category:
Various data file
Date updated: September 24, 2026
Microsoft PowerPoint for Mac used TTBS files to store toolbar-related settings and customizations. The file belongs to the application and is separate from PowerPoint presentation files.
TTBS files are associated with older Mac versions of Microsoft PowerPoint, part of Microsoft Office for Mac. Microsoft PowerPoint is also available for Windows, but this file type is specific to the Mac version.
The format is obsolete in current versions of PowerPoint. Modern releases use different methods to store application settings and toolbar or ribbon customizations.
Open a TTBS file with the older version of Microsoft PowerPoint for Mac that created or used it. In normal use, PowerPoint reads the file as an application toolbar file rather than opening it as a document.
Current versions of PowerPoint for Mac may not recognize the file, and the Windows version of PowerPoint is not expected to open this Mac-specific toolbar format.
A TTBS file does not contain presentation content and normally has no useful conversion to another document format.
If the toolbar settings are needed in a newer version of PowerPoint, open the file with a compatible older Mac version and recreate the required toolbar customizations manually in the newer application.
Software applications that handle other tasks involving ttbs files:
Microsoft Windows
Apple macOS / Mac OS X
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