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:
: Ensure you have Brief_Vast_Shoe.7z.001 in the same folder. 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