I saw on this link How do you auto format code in Visual Studio? how to apply indentation on files, but I need to apply this in more than 350 files, have a way to do this without open every file?
Currently it is not possible with the default features of the Visual Studio. I was able to accomplish this task using the ReSharper Cleanup Solution feature: https://www.jetbrains.com/help/resharper/Code_Cleanup__Index.html