Once you have verified the file is safe, you can open it using standard tools:
Before unzipping, upload the file to VirusTotal to check it against dozens of different antivirus engines. Download combnew zip
There is a "CoNew" index used in weather and vegetation research. If you are a researcher, combnew.zip might contain scripts or datasets related to this index. Once you have verified the file is safe,
Ensure you are downloading from a trusted site like GitHub, a verified corporate portal, or a known academic repository. a verified corporate portal
Legitimate .zip packages almost always include a README.txt or INSTALL.md file. Check these first to understand the file's purpose. How to Extract the File