What is a nsr file and how do I open a nsr file?
The NSR file extension is known as Nessus Security Report File which was developed by Tenable Network Security. It is a file format in the form of text report generated by Nessus, a security application used for conducting network vulnerability scans. It saves the summary information for a security scan and contains less verbose information than an .nbe report file. It is used for network security audits. The NSR format is no longer active. The .nessus format has replaced both the NBE and NSR formats. With Nessus, reports can be customized for executives, system administrators, or auditors. Reports generated in PDF format (requires Oracle Java be installed on the Nessus server) facilitate easy sharing, but you also have the option of generating reports in native Nessus formats or HTML. Reporting is a major part of all Vulnerability Scanners. It is also capable of producing style sheets to transform the .nessus report to another format.
Relevant nsr file links:
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How to open nsr file on Microsoft.com