Unable to preview RTF files with NEV

NEV does not show a preview for RTF files. The following came from Matt/Arondor team:

I received this answer from arondor:
I found a workaround that can tell rendition to use libreoffice for RTFs

you must have this configuration in the application-security.yml file of the converter:

mime:
  type:
    msoffice:
      word: application/msword,application/vnd.openxmlformats-officedocument.wordprocessingml.document,application/vnd.ms-word.document.macroEnabled.12,application/vnd.openxmlformats-officedocument.wordprocessingml.template,application/vnd.ms-word.template.macroEnabled.12
      excel: application/msexcel,application/vnd.ms-excel,application/x-ms-excel,application/vnd.openxmlformats-officedocument.spreadsheetml.sheet,application/vnd.ms-excel.sheet.macroEnabled.12,application/vnd.openxmlformats-officedocument.spreadsheetml.template,application/vnd.ms-excel.template.macroEnabled.12
      powerpoint: application/vnd.ms-powerpoint,application/vnd.openxmlformats-officedocument.presentationml.presentation,application/vnd.ms-powerpoint.presentation.macroEnabled.12,application/vnd.openxmlformats-officedocument.presentationml.template,application/vnd.ms-powerpoint.template.macroEnabled.12
      project: application/vnd.ms-project
      visio: application/visio,application/x-visio,application/vnd.visio,application/vnd.ms-visio,application/visio.drawing,application/vsd,application/x-vsd,image/x-vsd,zz-application/zz-winassoc-vsd
      publisher: application/x-mspublisher,application/vnd.ms-publisher
    libreoffice:
      text: application/vnd.oasis.opendocument.text,text/rtf
      sheet: application/vnd.oasis.opendocument.spreadsheet
      presentation: application/vnd.oasis.opendocument.presentation
      graphics: application/vnd.oasis.opendocument.graphics

 

I just added txt/rtf in the libreoffice part. Originally it is in the msoffice part