Do you want to ask "What should I do if the digital signature of the siemensplmsoftwarenx program is invalid?"

1. First select the missing certificate in the splmsoftwarenx program, click Details, and then click Copy to file. Click Next, select the required format, select the default, and click Next.

2. Next, select the exported file location, define the exported file name, and click Next.

3. Finally, check whether the information is correct. If it is correct, click Finish to start exporting.