Notes about the NSRD file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The NSRD file type is primarily associated with 'SH&E NetWorks' by Simat, Helliesen and Eichner, Inc.. A NetWorks report design is stored in a human-readable form that can be viewed and altered by any text editor. The file syntax is like LISP, although XML-style greater than and less than symbols are used instead of parentheses. The files are small, so associating the type with Notepad works fine.
Detailed information for file extension NSRD:
File classification: Text
To change file associations press Windows Key
and then Apps and Features
> Default apps
> Choose default apps by file type
Invalid file associations could be the result of underlying issues within your Windows PC.