Missing software and file drivers is often a leading cause of NS3 file problems. It is highly recommended that you scan your PC using the NS3 File Repair Tool. It will analyze your files and make sure you have the necessary file openers.
NS3 file error symptoms can include the inability to open NS3 files, program lock-ups, crashes, slow PC performance, startup and shut down problems, and installation errors.
Fixing the Problem
To ensure NS3 files can be opened and read by your computer, download and run the NS3 File Repair Tool. Simply click the button below to download the software.