Which file extension typically indicates a Windows executable file?

The file extension that typically indicates a Windows executable file is .exe. This extension is recognized by the Windows operating system as a program that can be executed directly, allowing users to run applications or scripts. Executable files perform specific tasks when opened, such as launching software programs. In the context of digital forensics or cyber investigation, identifying .exe files can be crucial, as they may contain malware or harmful software that can impact a system's security.

Other file extensions mentioned indicate entirely different types of files: .doc is associated with Microsoft Word documents, .jpg refers to image files commonly used for pictures, and .pdf denotes Portable Document Format files used for sharing documents in a fixed format. Each of these extensions serves specific functions and does not relate to executable files.