Wireshark is a widely used network protocol analyzer that supports various capture file formats, including those generated by tcpdump.
The .pcap extension is a standard format for packet capture files and is fully supported by Wireshark.
The file extension or the inclusion of characters such as "-" in the file name does not impact Wireshark's ability to open and read the file.
When the engineer opens the sandboxmatware2022-12-22.pcaps file in Wireshark, the tool will read the packet capture data, allowing for detailed analysis of network traffic.
Reference:
Cisco Cybersecurity Operations Fundamentals
Wireshark User Guide
tcpdump and libpcap Documentation