What file types are supported by Box's Content Preview?



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Content Preview supports viewing the following file types:

Document Types

'as', 'as3', 'asm', 'bat', 'c', 'cc', 'cmake', 'cpp', 'cs', 'css', 'csv', 'cxx', 'diff', 'doc', 'docx', 'erb', 'gdoc', 'groovy', 'gsheet', 'h', 'haml', 'hh', 'htm', 'html', 'java', 'js', 'less', 'm', 'make', 'ml', 'mm', 'msg', 'ods', 'odt', 'pdf', 'php', 'pl', 'properties', 'py', 'rb', 'rtf', 'rst', 'sass', 'scala', 'scm', 'script', 'sh', 'sml', 'sql', 'txt', 'vi', 'vim', 'wpd', 'xls', 'xlsm', 'xlsx', 'xml', 'xsd', 'xsl', 'yaml'


'flv', 'f4v', 'swf' 


'ai', 'bmp', 'gif', 'eps', 'jpeg', 'jpg', 'png', 'ps', 'psd', 'svg', 'tif', 'tiff', 'dcm', 'dicm', 'dicom'


'odp', 'ppt', 'pptx' 

3D (Graphics and Modeling)


  • Preview of these file types will only work on mobile devices using our Box mobile app


'3g2', '3gp', 'avi', 'm2v', 'm2ts', 'm4v', 'mkv', 'mov', 'mp4', 'mpeg', 'mpg', 'ogg', 'mts', 'qt', 'wmv'

  • You can preview videos up to 3.5 hours in length
  • AVCHD (Advanced Video Coding High Definition) is not supported in preview.
  • Only available to Enterprise and Elite accounts

Mobile Video



'aac', 'aifc', 'aiff', 'amr', 'au', 'flac', 'm4a', 'mp3', 'ogg', 'ra', 'wav', 'wma'

Note: Preview is limited to files sized 500MB or smaller, except video files, which can be as long as 3.5 hours. Excel file previews are also limited to sheets that are less than ~100 columns and ~100,000 rows.

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