I recommend using the MailConverterTools MBOX File Viewer you can view and open MBOX files. The software is a brilliant solution to quickly open corrupt, Inaccessible and Damaged MBOX files. This software converts MBOX files to PST, PDF, MBOX, MSG, EML, EMLX, and so on. Additionally, the software features an interactive user interface that is designed for ease of use, ensuring a smooth experience for both technical and non-technical users.