How do I convert a PKCS 7 certificate file to x.509 certificate file?

Problem:

Certificate file in email is PKCS 7 format and server certificate installation instructions requires x.509 format.

Resolution:

To convert the PKCS 7 formatted cert.cer file to x.509 format perform the following steps.

1. Copy the PKCS 7 certificate file to a Windows desktop
2. Rename the file and give it a .p7b extension
3. Open the .p7b file
4. Click the plus ( + ) symbol
5. Click the Certificates directory
   Note: If an EV certificate is being converted your should see three files. The End Entity certificate and the two EV intermediate CA's.
6. Right click on your certificate file
7. Select All Tasks > Export
8. Click Next
9. Select Base-64 encoded X.509 (.cer) > Click Next
10. Browse to a location to store the file
11. Enter a File name. For example MyCert. The .cer extension is added automatically.
12. Click Save
13. Click Next
14. Click Save