These files are split byte-wise. For the full archive to be functional, all subsequent parts (e.g., .7z.002 , .7z.003 ) must be present in the same directory. Contextual Usage
Archives are often split into smaller "spanned" volumes to bypass file size limits on specific storage media (like USB drives) or for easier distribution over networks with upload limits. BluePlaid.7z.001
It is a 7z archive split into multiple parts. The .001 extension indicates it is the first volume . These files are split byte-wise
