Notes about the SPAR 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 SPAR file type is primarily associated with 'Simple Perl ARchive manager'. Spar is a simple, plain text file archiver, which offers self extracting (with perl) or pure data archives. Especially when containing lots of small files a spar archive can be quite a bit smaller than a tar. And, it can be conveniently edited, especially in Emacs. The links here to to directories where the spar script can be downloaded. While .SPAR is the normal extension (suffix in *nix terms), it is not required.
Detailed information for file extension SPAR:
File classification: Archive
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.