The “.SDP” file extension is associated with Session Description Protocol (SDP) files. SDP is a text-based protocol used to describe multimedia sessions for the purposes of session announcement, session invitation, and other forms of multimedia session initiation.

How to open an SDP file:

SDP files themselves are typically opened and read by networking or communication software, rather than by end-users directly. Here are some potential ways to work with SDP files:

1. Text Editors:

2. Network Communication Software:

Programs that may open SDP files:

1. VoIP Applications:

2. Media Servers:

Various apps that use files with SDP extension: