SSL certificate

Hello,

I want to export a SSL certificate from IIS and save it as txt. How could I do that?

I do know how to export this as a .cer from IIS? As .cer is blocked in outlook, I want to save this as a txt file and sent to somebody to import it. I understand once they receive it, they have to rename it to .cer befrore importing.

Thanks

TIA TP