Can't extract EXE files

- Keka version: [1.2.51 (4869)
- macOS Mojave version: 10.14.6 (18G9323)

While attempting to set up a downloaded software, I am met with:

Extraction of "setup.exe" failed
Error code 2 using "7zz"
Fatal error

log file reproducing the issue:
[Keka_2022-01-19-100530546.log](https://github.com/aonez/Keka/files/7898255/Keka_2022-01-19-100530546.log)

Steps to reproduce the behavior:
1. Go to https://support.mindwaretech.com/downloads/
2. Click on '"Electromyography Analysis (EMG)"
3. Download "Version 3.1.5 - 199 MB - Released 2017-08-22"
4. Extract the downloaded file (EMG Analysis 3.1.5 Installer) using Keka
5. Open the extracted file
6. Click on "Volume"
7. Click on "setup.exe"
8. See error

I expected to be met with the installer in order to set up the software on my device

I have tried going back to the original link and re-downloading/re-extracting a few times, as well as closing and launching Keka anew.