The file is the third part of a split 7-Zip archive . Because it is a "split volume," you cannot open or generate a "report" for this single file in isolation; it contains only a fraction of the total data.
: This happens because the "header" (the table of contents) is usually stored in the .001 file. (3).7z.003
: Download the free tool from 7-zip.org if you don't have it. The file is the third part of a split 7-Zip archive