If you’re still stuck:
Research suggests that SoftCAS.zip.13 may be associated with various software applications, including:
: Many older software distributions on community forums or archival sites use this naming convention for large installer packages. How to Use It Collect All Parts
"SoftCAS.zip.13" appears to be the 13th volume of a split-archive compressed file (likely generated by WinZip or 7-Zip) related to , a software-based Conditional Access System.
If this file was generated by a system, it most likely contains one of the following:
Esxi7: CentOS7 PT2 & TvTest - Qiita
: Ensure that the file comes from a trusted source. Software or firmware from unknown sources can potentially harm your system or data.