What is a .EFW file?
The .EFW file extension is used for files that were originally either compressed ZIP files or executable (EXE) files. These files have been renamed to have a ".efw" extension by a program called CA Security Centre, which is a type of antivirus software made by Computer Associates. This renaming usually happens when the antivirus software scans email attachments to protect the computer from viruses or harmful programs.
To open a file with a .EFW extension, you need to know what kind of file it was before it was renamed. If it was a compressed ZIP file, you can change the ".efw" extension back to ".zip". After doing this, you can open the file using a program that can handle ZIP files. Some examples of these programs include unzip, funzip, p7zip, Corel WinZip, PKZip, Smith Micro StuffIt Deluxe, and Smith Micro StuffIt Deluxe Mac 16.
If the .EFW file was originally an executable (.EXE) file, you can open it by changing the ".efw" extension back to ".exe". Then, you can run the file directly on your computer.
However, it's very important to be careful when opening .EFW files, especially if they came from an email attachment and you're not sure who sent it. These files could contain viruses or other harmful software. Always make sure that the source of the file is trustworthy before opening it.
If you find that your antivirus software is renaming files to .EFW and you're downloading files that you know are safe, you can temporarily disable your antivirus software. This can prevent the software from renaming your ZIP or EXE files to .EFW. Just remember to turn your antivirus back on after you're done to keep your computer protected.
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