File Extension Library


.066 File Extension

  • Category: Archive and compressed Files

What are .066 files and how to open them?

Can't open .066 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .066 file.

What is a .066 file extension?

.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 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.)