.EFW File Extension

Computer Associates
File Type:
Renamed Zip or Executable File

Having trouble opening .efw extension? Don't panic! This page explains what efw files are as well as suggests programs you may use to open efw files. You can download these programs through this page.

What is a EFW file?

Efw file extension has Renamed Zip or Executable file type, developed by Computer Associates, which is associated with the "compressed files" category.

These executable (.EXE) or compressed (.ZIP) files that were renamed by CA Security Centre. The .EFW extension is often attached to email attachment files scanned by the Computer Associates (CA) antivirus program. You can open a .EFW file with any decompression utility, after you rename it back to ".zip." Executable files can be run without any additional software after renaming. Users can prevent CA Security Centre from creating new .EFW files by disabling the software for the period of downloading zipped and exe files.

To learn how you can open the given file, read the information below.

efw file icon
Computer Associates
File Type:
Renamed Zip or Executable File
Compressed Files

How to open EFW file?

Double click the efw file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .efw extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the efw extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the efw file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open EFW files

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the efw file as well. Download Universal File Viewer for your OS.

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