Opening a NESSUS File

The NESSUS file type is primarily associated with Nessus.

NESSUS	File extension: NESSUS
	File type:	Nessus scan file

What is a NESSUS file?

NESSUS files mostly belong to Nessus by Tenable. NESSUS file format is associated with the software of the same name, developed by Tenable.

• Main Use: Nessus is a security software intended to protect the users against network vulnerabilities on Windows PCs.The software uses NESSUS files to store network security scan results. With the help of NESSUS files, it is also possible to import the security scan results of home/office networks for review. Once the NESSUS files are imported into the Nessus application, they can be used in seeing the scanned results, exporting fresh reports for the scan, renaming the scans, and updating the description. NESSUS scans can also be imported as policies post which the configuration settings of the imported policy can be modified if needed.
• Additional Information: The data in a NESSUS file is stored in an XML file format. Nessus version 4 software introduced version 2 of the NESSUS file format, which is backward compatible with the earlier versions of the software.

How to open NESSUS files

You need a suitable software like Nessus to open a NESSUS file. You need a suitable software like Nessus from Tenable to open a NESSUS file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your NESSUS file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a NESSUS file directly in the browser:. Just drag the file onto this browser window and drop it.

Online NESSUS Text Viewer

Choose your .nessus file to view

or drag and drop it here

Online File Viewer

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How to extract texts from NESSUS files or capture a screenshot to PDF, JPG, DOCX, TXT, ...

1. Just click the "Choose your .nessus file to view" button on this page.
2. After your file is opened in browser,
3. click "Save as..." in the menu.
4. Then choose the file format (e.g. JPG, PDF, DOCX, TXT, ...) you want.
5. Download the converted file.

Unable to Open a .NESSUS File? Quick Solutions:

Because .NESSUS files can come from different programs, they aren't universally openable.

1. Identify the Source: Files from cybersecurity analysts or IT admins usually contain vulnerability scan results, pointing to Tenable software.
2. Check the Header: Open the file in a text editor to inspect the first few lines:
   • <?xml or <NessusClientData_v2> indicates a standard Nessus XML report.
   • Unreadable characters suggest a corrupted or encrypted file.
3. Use the Original Software: The original program is usually required; try Tenable Nessus, Tenable Security Center, or ask the sender if uncertain.
4. Use this Webpage: Drag and drop your file onto this page to detect its format, extract readable metadata, and preview the contents.