- Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.1, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- string(71) "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
- Output for 7.3.2 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
- string(142) "application/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/vnd.openxmlformats-officedocument.wordprocessingml.document"