How to open File split or compressed from multi-volume archive (part 86) .086 files
Have you had trouble opening the 086 file on your computer? What are 086 files? We explain what they are and recommend software that we know will open them.
What is 086 file?
A 086 file extension is related to split file or compressed file from a multi-volume archive (part 86).
File split or compressed from multi-volume archive (part 86) description
The 086 file extension is generally associated with 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 021 file extension for its multi-volume files or archives, such as Winrar (see part86.rar) or 7-Zip (see 7z.086).
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.
Suggested software to open 086 file

WinRAR
One of the oldest and most popular shareware file archiver and data compression utility