git_diff_tool_for_openoffice_odf_files.md

File : <repository>/.git/config or $HOME/.gitconfig

[diff "odf"]
  textconv = odt2txt
  binary = true
  

If setting previous configuration in $HOME/.gitconfig, just add the following

[core]
  attributesfile = $HOME/.config/git/info/attributes

File : <repository>/.gitattributes or $HOME/.config/git/info/attributes

*.ods diff=odf
*.odt diff=odf
*.odp diff=odf

From link