troubles reading other apps config files

I have a problem. I have to access to the data folder of other applications from my application to read configurat开发者_JAVA百科ion's file and so on but it seems it's possible only to read data from the sdcard and my application's data folder. Can you suggest me how to solve this problem?

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You can't, it's a feature.

It would be a security risk if all applications had access to other apps data.