[求助]my iebook.iebk 文件打不开了。

iebook卸载后重装 结果 my iebook.iebk 就打不开了。请教高手。

提示信息：

The file being readed is not a valid "portable network graphics" image because it contains an invalid header. this file may be corruped , try obtaining it again.

注意你前后的版本，看是否兼容

确实是版本问题，一般是向下美容！