File Extension Library


.066 File Extension

  • Category: Archive and compressed Files

What is an .066 file?

.066 file extension has been classified as Archive and compressed Files.

.066 is Compressed archive file

The 066 file extension is generally used for split files. A part of larger file split using splitter software, such us HJSplit, WellTek 001 File Joiner & Splitter, SplitJoin or File Managers, such as Total Commander.

It is also associated with several archivers or compression tools, which are using, or did use in the past, the 066 file extension for its multi-volume files or archives, such as Winrar or 7-Zip.

In case of split files, you will need to merge them first with the use of the splitting/joining software tool, before you can open or work with them. If the files are compressed multi-volume archives, you will have to extract the first one and it will automatically continue to extract all the parts. In either case, you will need ALL the parts to access the original content.


How to open:

Use WinRAR compression utility to extract archive contents and start with first archive (first archive file has mostly file extension rar or 000 or 001).

How to convert:

Extract archive ant then compress to another archive file format (like .zip etc.)

How to Open .066 file on different platforms

Open .066 File on Windows

  • Right-click a .066
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .066 file and Select check box "Always use this app to open .066 files" Press "Ok"

Open .066 File on Mac

  • Right-click (or Ctrl + Left-click) the .066 file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .066 File on Linux

Right click on the .066 file, choose "Open with" and select a program from the list above

Open .066 File on iPhone

Select a file. If you don't see an application to open the .066 file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .066 File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .066 files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .066 files

  1. You need to update the application that you normally use to open .066 files. Only the latest version of the software supports the current .066 file format
  2. You need to check the .066 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)