Tools like 7-Zip or WinRAR can open many formats that standard Windows or Mac tools cannot.

If you know the file should be a zip, you can try right-clicking and renaming it to end in .zip to see if your system recognizes it.

Be cautious of files that claim to be zips but have unusual extensions (like .zip.exe ), as these are often used to distribute malware. 2. "It's Not Zip" in Sports & Recreation

Many tour operators clarify that their experience is rappelling (descending a rope) rather than ziplining (sliding across a cable).

Sometimes files are downloaded as .rar , .7z , or .tar.gz instead of .zip . These require specific software to open.