Cousins4.7z.001 -

copy /b Cousins4.7z.001 + Cousins4.7z.002 Cousins4.7z Linux/Mac: cat Cousins4.7z.* > Cousins4.7z 2. Extract the Contents

What operating system or are you currently using? Cousins4.7z.001

Use the official 7-Zip extraction tool or the p7zip command-line utility on Linux. copy /b Cousins4

If you can provide more context on where you found this file, I can give a much more accurate write-up. This file name is typical in several scenarios: Cousins4.7z.001