Explanation: The Config.xlsx file is a configuration file that stores the values of various parameters used in the automation process1. It has three sheets: Settings, Constants, and Assets2. The Settings sheet contains hard-coded values that may need to be changed occasionally, such as file paths, file names, timeout values, etc23. The Constants sheet contains values that are universal variables for the process, such as selectors, URLs, etc23. The Assets sheet contains the names of Orchestrator Assets that are used to store dynamic values that can be accessed across different processes, such as credentials, text, boolean, integer, etc24. However, the Assets sheet does not contain the names of Credential Assets stored in Orchestrator, because they are retrieved using a different activity (Get Credentials) than other assets (Get Asset). Therefore, the Credential Assets are stored in the Settings sheet instead of the Assets sheet.
References: Config.xlsx documentation, Settings, Constants and Assets sheet in config file, Config Dictionary in ReFramework without Excel, Custom Configuration File Reader, [UiPath Framework - Assets VS Settings Sheet of Config.xlsx].