Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .866

0 extension(s) and 1 alias(es) in our database

Below, you can find answers to the following questions:

  • What is the .866 file?
  • Which program can create the .866 file?
  • Where can you find a description of the .866 format?
  • What can convert .866 files to a different format?
  • Which MIME-type is associated with the .866 extension?
Microsoft Visual FoxPro Data .850 file icon

Microsoft Visual FoxPro Data

850 file is a Microsoft Visual FoxPro Data. Visual FoxPro is a data-centric object-oriented and procedural programming language produced by Microsoft.
Detailed description not available
Category: Data files
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
852, 866
Related extensions:
General Database File
Berkeley DB3 Database
Act! Database File
Microsoft Visual FoxPro Database
dBASE II Database
Microsoft Visual FoxPro Catalog File
Microsoft Visual FoxPro Macro File

Other types of files may also use the .866 file extension. If you have helpful information about .866 extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

TI-86 Calculator Equation Data

The .866 filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

66 (1), 86 (1), 86y (1)

Can't open a .866 file?

If you want to open a .866 file on your computer, you just need to have the appropriate program installed. If the .866 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.866

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

Rate this page

4 / 5 based on 1 user ratings.