UTF8 file format description

Many people share .utf8 files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .utf8 file can be edited, converted or printed with. On this page, we try to provide assistance for handling .utf8 files.

1 filename extension(s) found in our database.

.utf8 - Unicode UTF8 Encoded Text Document

The UTF8 document files are related to Notepad. The UTF8 file is an Unicode UTF8 Encoded Text Document. UTF-8 is a standard transformation format for Unicode characters and it is ideal character repertoire for any platform or language anywhere in the world.

Document files
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Unicode UTF8 Encoded Text Document related extensions:
Notepad++ Data
NASA Ames Data Exchange
Android Related Readme
Nimbus 7 SAMS APRIORI Data
Microsoft Exchange Non-Delivery Report Message
BBS Directory List

Naturally, other applications may also use the .utf8 file extension. Even harmful programs can create .utf8 files. Be especially cautious with .utf8 files coming from an unknown source!

Can't open a .utf8 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


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 one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .utf8 file extension is often given incorrectly!

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

ut8, utf

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Ghost Master Language Data
AOL Software Update
UTF-8 Encoded Text File

Operating systems

DataTypes.net currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

If you find the information on this page useful, please feel free to link to this page.


If you have useful information about the .utf8 file format, then write to us!

DataTypes.net >> UTF8 file