I suppose that you are asking about Event log and you use 1C:Enterprise in file mode. Those files you can view in 1C:Enterprise mode using the Event log standard data processor which you can find if you click Main menu and then click All functions. Or in Designer mode in Main menu click Administration, and then click Event log.
For your information, in more complicated cases for the investigation of your problem you can be asked to configure and provide Technological log. You can read more about it and about Event log in .