Does the questioner want to ask "What and what is in the file menu of many applications in Windows"? Save and save as. The file menu is used to adjust and control the properties of the file. In Windows, the file menu of the application is Save and Save As. The Save command can only save with the original file name, and the Save As command can also save with the original file name. The Windows operating system is an operating system developed by Microsoft Corporation in the United States. It came out in 1985.