windows - How to make PFX file from Symantec code? -

i have password-protected pfx file , expired . renewed of symantec code signing certificate .

below code signing certificate:  certificate   -----begin certificate----- base-64 encoded data -----end certificate-----  below intermediate ca certificate:  -----begin certificate----- base-64 encoded data -----end certificate-----  below certificate in pkcs7 format:  -----begin certificate----- base-64 encoded data -----end certificate----- 

but don't .cer , .key files . know main requirement install certificate on browser . have doubt :

1. q 1 :

should copy these values text file (intermediate ca certificate or certificate in pkcs7 format or certificate )? extension should use ? .cer file ?

2. q 2 :

after ? install certificate ? setup setup tutorial or video links ?

thanks