Click open the start menu and type %temp% and select the top result from the option. Windows allows you to use its Settings App to remove the temporary files. Here is how you can use this ...

For instance, Microsoft Office saves a Temporary File of the open document every few minutes. If you save the document and exit, the Temporary File gets deleted. If the program crashes ...

A file created by an application for its own purposes. In the days of limited main memory, temporary files were the only way to store large amounts of interim data that the application was generating.