2019-12.7z.002 -

: Ensure you have 2019-12.7z.001 , 2019-12.7z.002 , and any subsequent numbers. Use 7-Zip or WinRAR : Right-click the first file ( .001 ).

Because this is a specific file fragment, the "proper content" depends on whether you are looking for a description of what is likely inside or instructions on how to access it. Common Interpretations 2019-12.7z.002

To access the contents, you cannot open .002 by itself. You must have all parts present in the same folder: : Ensure you have 2019-12