/usr/share/tracker/extract-rules/11-msoffice-xml.rule is in tracker-extract 0.14.0-2ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | [ExtractorRule]
ModulePath=/usr/lib/tracker-0.14/extract-modules/libextract-msoffice-xml.so
MimeTypes=application/vnd.openxmlformats-officedocument.presentationml.presentation;application/vnd.openxmlformats-officedocument.presentationml.slideshow;application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;application/vnd.openxmlformats-officedocument.wordprocessingml.document;
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