The configuration file of MA5200F turns to clobbers when it is opened after backup.
Add the suffix of .zip to the backup file, and then use winzip or winrar to open it.
The name of configuration file of MA5200F is vrpcfg.zip. The file is a compressed and it needs to decompress before openning. At the same time, the backup file should be suffixed with .zip so the computer can identify it as compressed file; otherwise, it will be clobbers if opened by notebook directly.
To make the file at computer readable, it is suggested to add suffix to the backup file. For MA5200F/G, the configuration file is of .zip format; the log, alarm, and billing files are of binary, and they can use .txt as suffix.