改变格式 meaning in English

change formatting

I found out the export setup format is not working when i change the format
当改变格式时，发现输出设备格式不运行。
This method honors properties that alter the appearance of the formatted string , with the following exceptions
此方法负责兑现用于改变格式化字符串外观的属性，并且会出现以下异常：
If you ve written much sax code , you know that it s extremely easy to lose data , or lose precision of data , or just reformat it accidentally
如果您编写过很多sax代码，就会明白很容易丢失数据、丢失数据精度或者偶尔改变格式。