The Four Best Ways to Open IIL Files

The first way you should always try to open file extension IIL is to double-click it, but when that doesn’t work, there are a few other things you can try. There are lots of programs that can open different file extensions, and there are some simple ways you can tell which one to use.

Pick the Right Program

Start by choosing the right program to open your IIL file. The most common program used to open IIL files is listed below. At a minimum, this program should be able to open your IIL file:

  • Norton CleanSweep Installation Log

Note the File Type

Other programs may be able to open your IIL file, depending on the type of file it is. You can find the file type listed in the file’s properties. On a Windows PC, right-click the file, click "Properties", then look under “Type of File.” On a Mac computer, right-click the file, click “More Info,” then look under “Kind”.


Tip: If it’s the IIL file extension, it probably falls under the Text Files type, so any program used for Text Files should open your IIL file.

Ask the Developer

Contacting the software developer is another easy way to get help opening a IIL file. You can find the developers for the most common programs used to open IIL files in the list below.

Software Developer
Norton CleanSweep Installation Log Symantec Corporation

Use a Universal File Viewer

When all else fails, a universal file viewer is the best way to open a IIL file. Programs like File Magic (Download) can open many different types of files, depending on the format. Although, some files may not be compatible with these programs. If your IIL file isn’t compatible, it will only open in binary format.

Download Universal File Viewer (File Magic)