.CNX File Overview

File Extension: CNX
File Type Description: IBM Rational XDE Data
File Type Developer: IBM
Primary Associated Software: Rational XDE
Primary Software Developer: IBM

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What is File Extension CNX?

The CNX file extension is a IBM Rational XDE Data file developed originally by David Harris for Pegasus Mail. Commonly, IBM Rational XDE Data files are found on user computers from United States, and on PCs running the Windows 10 operating system. Google Chrome is their primary internet browser for the bulk of these users.

Associated Developers and Software

Rational XDE by IBM
Pegasus Mail by David Harris

Top CNX User Languages

Top CNX File User Browsers

Desktop Friendly?


Mobile Friendly?


Most Popular CNX File Countries

Top User Operating Systems

Windows 7 Windows 10 Windows 8.1 Windows XP

Associated Operating Systems


Other File Types Related to CNX Files

Extension File Type Developer File Category File Type Description
.SSX IBM Data Files IBM Rational XDE Data
.ENX IBM Data Files IBM Rational XDE Data
.SDT Intuit, Inc. Data Files QuickBooks Data File
.WR! IBM Spreadsheet Files Lotus 1-2-3 Spreadsheet
.4 IBM Data Files IBM Voice Type Languages Scripts Data File
.RIP IBM Data Files Lotus Notes Error File
.NDC IBM Settings Files Personal Communications Settings File
.ODZ IBM Data Files IBM OpenDoc Editor Package
.TVT IBM Uncommon Files IBM Lenovo ThinkVantage Rescue And Recovery Data File
.BFF IBM Backup Files Backup File Format

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