Under the project folder is a user_files folder. This folder contains any files (such as input files and referenced files) that you supply to a project or any output (images, charts, movie clips, and so on) generated by Workbench that you want to have associated with the project. In most cases, you are responsible for placing required files into this folder. In other cases, such as the export of design point update data from a design exploration system to a CSV log file, data is written directly to a file created in this folder. For details, see Exporting Design Point Parameter Values to a Comma-Separated Values File.
Along with other project files, all of the files contained in the user_files folder appear in the Files pane in Workbench.
Workbench also protects this folder and ensures that it is managed and archived appropriately with the rest of the project; therefore, you can safely store additional files (such as PowerPoint or Excel files, or other files from separate applications that are associated with this project) here without the risk of losing data. If you save files in any other folder in the project structure and then exit without saving, Workbench deletes any files saved there since the last Workbench save.