Can I open the *.UDX, *.UDF design files created using previous versions of PI Expert?
The user has two choices when opening an old (*.UDX, *.UDF) design file: Review the file in read-only format with the PI Viewer. PI Viewer is also available within the PI Expert Tools menu. Open the file and select the “Yes” option at the startup prompt to automatically convert to PI Expert v7*.UDS format. This file is no longer read-only and may be modified and re-saved. This conversion may modify the original *.UDX, *.UDF file contents. See “Opening a *.UDX, *.UDF file” for more information.