What file type is used to customize environment-specific values during import in Appian?

The use of a .properties file in Appian to customize environment-specific values is a standard practice. These files are designed to store configuration data, which can vary by environment such as development, testing, and production. This makes .properties files particularly useful for managing values like database connections, API endpoints, and other settings that need to change depending on where the application is deployed.

When importing applications into different environments, Appian allows for the integration of these .properties files to seamlessly adjust the configurations without the need to modify the underlying application source directly. This approach enhances maintainability and simplifies the change management process by clearly separating configuration from code, ensuring that developers can focus on functionality while environment-specific settings are easily managed in the properties file.

Other file types like .config, .xml, or .json may be used for configuration in different contexts or frameworks, but for Appian specifically, the .properties file is the designated format for managing environment-specific values.