File Association
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Tools > Options > IDE > File Association
The File Association page allows you to configure the file extensions that you want to associate with RAD Studio. Windows opens files with checked file extensions using RAD Studio by default.
Most file extensions are checked by default. However, the following file extensions are an exception: .c, .cpp, .h, .hpp, .rc.
You can use the Select All and Deselect All buttons to check or uncheck all supported file extensions, respectively.
