Final answer:
Temporary files are stored in the user's temporary app data folder and are used to hold information temporarily while a file is being created or processed. They are usually deleted automatically, but can accumulate and need manual removal to free up space.
Step-by-step explanation:
Temporary files are typically kept in the user's temporary app data folder. These are files created automatically by software programs and operating systems to hold information temporarily while a file is being created or processed. For example, when you are editing a document, the word processing software may create a temporary file to save changes until you save the document yourself. Once the application is closed, or the document is properly saved, these temporary files are often deleted by the system to free up space. However, sometimes they can accumulate and may need to be cleaned out manually to clear storage space and improve system performance.