My brother needed to know how to fix pst file because he was desperate. Namely, his little daughter has deleted his Outlook contacts, messages, and notes, and he had no idea what to do. I sent him the link to a very useful YouTube video that helped me solve a similar problem back in the day. The video is promoting this great software that goes by the name of Stellar Phoenix Outlook Repair, and it can recover corrupted and deleted files. My brother installed the software instantly, and the moment he realized that his files were being restored, his happiness was indescribable. He was able to get everything back to normal.