To import a file or files into Pirform follow these steps
1, Ensure the .pex file is in a suitable location where you can find it
2. Click the Import from File button
3. Click Browse, and locate the file you want to import
4. Select the files you want to import. If you want to import multiple files, click the checkbox at the top which will select All the certificates in the file.
5. You will now see a list of everything you are about to import, if you are happy, click Import Certificates
6. The certificates will be added to your database.