Use standard tools like 7-Zip or WinRAR to see the file list before fully extracting.
Before extracting, upload the file to a scanner like VirusTotal to check for malicious code.
If you didn't expect the file, it could contain malware.
In some tech circles, people share "zip bombs" or specifically numbered archives to test decompression limits of various software.
Frequently, numbered zip files are used to share large batches of community-curated content, such as arcade game ROMs , music discographies, or high-resolution texture packs for mods.
