How to read backup messages with 9 1 mobile assistant

First of all, the message of the landlord is backed up and can't be seen. I usually use the computer version of the application treasure to back up, and then use the data cable to connect. I don't back up, I export directly. The exported contact message can be viewed on the computer without tools. You cannot view the backup package even after decompression. I hope it will help the landlord.