Final answer:
Unstaged files in Git are shown under the 'Changes not staged for commit' when running git status. These files need to be staged with 'git add' to be included in a commit.
Step-by-step explanation:
When running the git status command in a Git repository, unstaged files are listed under the heading 'Changes not staged for commit'. These are the files that you have modified in your working directory but have not yet prepared to be committed with git add. To include these changes in your next commit, you need to stage them using git add . If you see the heading 'Untracked files', these are files that Git does not know about because you have not added them to your repository yet. The heading 'Working tree clean' indicates that there are no changes in your working directory.