When saving a document for the first time, what must you do?

When saving a document for the first time, it is necessary to choose a location and file name. This action is crucial because it directs the software where to store the document on the computer or in a cloud storage service, and it specifies how the document will be identified in the future. A well-chosen file name helps in organizing and retrieving documents easily. It also promotes good file management practices by allowing users to identify the contents of the document at a glance.

The other options do not pertain to the initial saving process. Clicking the save button without first selecting a location and file name would not successfully save the document. Choosing a template or setting the page layout may be part of the document creation process but is not required specifically when saving a document for the first time. These actions may enhance the document's appearance or structure, but they are separate from the fundamental requirement of specifying where and how to save the file.