<!-- Code generated from the comments of the ExportConfig struct in builder/virtualbox/common/export_config.go; DO NOT EDIT MANUALLY -->

-   `format` (string) - Either ovf or ova, this specifies the output format
    of the exported virtual machine. This defaults to ovf.
    
-   `export_opts` ([]string) - Additional options to pass to the [VBoxManage
    export](https://www.virtualbox.org/manual/ch09.html#vboxmanage-export).
    This can be useful for passing product information to include in the
    resulting appliance file. Packer JSON configuration file example:
    
    ```json
    {
      "type": "virtualbox-iso",
      "export_opts":
      [
        "--manifest",
        "--vsys", "0",
        "--description", "{{user `vm_description`}}",
        "--version", "{{user `vm_version`}}"
      ],
      "format": "ova",
    }
    ```
    
    A VirtualBox [VM
    description](https://www.virtualbox.org/manual/ch09.html#vboxmanage-export-ovf)
    may contain arbitrary strings; the GUI interprets HTML formatting. However,
    the JSON format does not allow arbitrary newlines within a value. Add a
    multi-line description by preparing the string in the shell before the
    packer call like this (shell `>` continuation character snipped for easier
    copy & paste):
    
    ``` {.shell}
    
    vm_description='some
    multiline
    description'
    
    vm_version='0.2.0'
    
    packer build \
        -var "vm_description=${vm_description}" \
        -var "vm_version=${vm_version}"         \
        "packer_conf.json"
    ```
    