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Office 2008 Technical Reference
125
Application File Type
File Name
Extension
Description
PowerPoint
2008
PowerPoint
Macro-Enabled
Show
.ppsm The XML-based presentation format that
always opens in slide show view and preserves
VBA macro code. VBA macros do not run in
PowerPoint 2008.
PowerPoint
2008, Excel
2008, Word
2008
Office Theme .thmx Saves the font, color scheme, and background
of the file for you to use as a new theme.
Excel 2008 Excel Workbook .xlsx The default, XML-based workbook format for
Microsoft Excel 2008 for Mac and Excel 2007
for Windows. Cannot store VBA macro code or
Excel 4.0 macro sheets.
Excel 2008 Excel Template .xltx Saves the workbook as an XML-based
template that you can use to start new
workbooks. Saves settings such as formatting,
headings, formulas, and custom toolbars.
Cannot store VBA macro code or Excel 4.0
macro sheets.
Excel 2008 Excel Binary
Workbook
.xlsb Stores data in binary format. Takes less time to
save, and helps keep sensitive data more
secure. Preserves VBA macro code and Excel
4.0 macro sheets. VBA macros do not run in
Excel 2008.
Excel 2008 Excel Macro-
Enabled
Workbook
.xlsm The XML-based workbook format for
Microsoft Excel 2008 for Mac and Excel 2007
for Windows that preserves VBA macro code
and Excel 4.0 macro sheets. VBA macros do
not run in Excel 2008.
Excel 2008 Excel Macro-
Enabled
Template
.xltm Saves the workbook as an XML-based
template that preserves VBA macro code and
Excel 4.0 macro sheets. VBA macros do not run
in Excel 2008.