An AAR is a document that evaluated the effectiveness of a project, event or operations. It determines successes, failures, it's causes and areas of improvement. The basic function of writing After Action Report Sample is to improve future planning and execution. The following post contains Best 6 After Action Report Samples created in MS Word and Excel. As It enhances accountability and transparency. It also prepares and trains resources by providing history record and references. This way After Action Report helps decision-making and strategy development resulting in enhancing knowledge sharing and collaborations. See also Event Report Templates.