The file is not a standard document, but rather a specific split archive part created using compression software like 7-Zip. What this file represents:
: The software will automatically pull data from the .002 part (and any others) to reconstruct the original files. Do you have the other parts of this archive, or Brief_Vast_Shoe.7z.002
: The .002 extension indicates this is the second piece of a larger archive. Files are often split this way to meet email attachment limits or to fit on multiple storage devices. The file is not a standard document, but