Id extension stands for Identity id, Lotus Notes or Pegasus mail. These can be opened by Lotus Notes or Pegasus Mail.

Id extension is used with many software as an identificatory. However, as a file extension, it is used only in two softwares: 

1-Lotus Notes User ID :
It is an id file that specially developed for Lotus Notes users. This file includes license number ,name, password and certificate number. 

2-Pegasus Mail:
Pegasus mail is an email software such as Outlook express. ID file may be an index description file which is used with Pegasus Mail software.

What to use ID

Lotus Notes, Pegasus Mail

which page related to ID file

ID Related Searches

You can check related links about ID fileextension.