It is likely milky35 is simply seeing a winrar icon and thus presuming a rar file. It is quite likely a 7zip file or a split 7zip file.
I do not recommend using winrar. Instead, use 7zip at
7-Zip .
Reasons to use 7zip:
1. It is free and open source
2. It can unpack all of these types of archives: 7z, ZIP, GZIP, BZIP2, TAR, RAR, CAB, ISO, ARJ, LZH, CHM, MSI, WIM, Z, CPIO, RPM, DEB and NSIS
If the file is split, such as .001, .002, .003, ... Then you may choose to FIRST combine the file into its original form and THEN extract its contents using 7zip program. You can combine the file into its original form using a free program called hjsplit:
File Splitters, freeware and multi-platform: HJSplit
To review:
1. Combine the parts of the file into its original form using HJsplit.
This will combine example.7z.001 + example.7z.002 + example.7z.003 +... into a single file example.7z
2. Extract the single combined file example.7z using 7zip.