Advanced Customization > Services and Infrastructure Customization > Customizing Data Formats > Adding and Updating Data Formats for Content Holders > Updating Data Formats
  
Updating Data Formats
Enter the following command to update an existing data format:
java wt.content.DataFormatUtil -update
The tool prompts you for the format name of an existing data format object. After you have identified the data format, you can update its attributes.
If you make a change to the MIME type name or display value, you must also update the corresponding line in the wt\content\FormatNameRB.java file.
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If you change the MIME type of a data format object, you must stop and restart the method server to implement the change.