The Application Folder
The next folder to explore is the application folder, whose name will reflect the program used
to create the file. Ours is named xl (for Excel), as displayed in Figure 3-24. The application
folder contains application-specific document files. Some of these files are found in their own
folder, but the root contains the workbook part and the sharedStrings (data) part.
Figure 3-24. xl folder contents
The [Content_Types].xml File
Another file of interest is the [Content_Types].xml file found in the root folder we created
(unzippedExcelfiles). It lists the content types for the other parts included in the Excel file
package. Content types are the types of parts that can be included in a package. Following is
a list of the content types that can be found in an Office document:
??? application/vnd.ms-excel.12application/x-font
??? application/vnd.ms-excel.addin.12application/xml
??? application/vnd.ms-excel.template.12audio/mp3
??? application/vnd.ms-excel.binary.12audio/aiff
??? application/vnd.ms-excel.macroEnabled.12audio/basic
??? application/vnd.ms-excel.macroEnabledTemplate.12audio/midi
??? application/vnd.ms-office.activeX+xmlaudio/x-ms-wax
CHAPTER 3 n USING XML IN EXCEL 2007 123
??? application/vnd.ms-office.chartaudio/x-ms-wma
??? application/vnd.ms-office.vbaProjectimage/bmp
??? application/vnd.ms.powerpoint.template.macroEnabled.12application/x-font
??? application/vnd.ms-powerpoint.image/gif
??? application/vnd.ms-powerpoint.
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