personal information exchange
.pfx
*.pfx contains the private key and *.cer does not contain the private key
.cer for file without private key, .pfx for file with private key
The file extension for an exported certificate backup file is typically .pfx or .p12. These formats are used to bundle a private key with the corresponding certificate, and they can include an entire certificate chain. Another common format is .cer, which may contain just the public certificate.
I t is a file extension for "Stopizilla"
It is a batch command file.
If you mean the type of file it is called the file extension.
.bib is a file extension
It is a batch command file.
What is the file extension What is the file extension
The file is just a plain text file. Txt is an abbreviation for text.
.wav an extension file . mean ( waveform audio file )