File-Naming Conventions

EFT follows the standard Windows naming conventions, with a few exceptions. (Please refer to Unicode File Transfers and Unicode Exceptions for details of using Unicode characters.)

For example:

  • You can name files using almost any character for a name, except for the following reserved characters: < > : " / \ | ? * %

  • The maximum length for a path is 255 characters. This limitation includes the drive letter, colon, backslash, directories, subdirectories, filename, and extension. If the relative path is too long, a warning message appears. (To change the path-length limit, refer to Maximum Path Length Lion in Microsoft Learn.)

  • Characters that are valid for naming files, folders, or shortcuts include any combination of letters (A-Z) and numbers (0-9), plus the following special characters.

^

&

'

@

{

}

[

]

Accent circumflex (caret)

Ampersand

Apostrophe (single quotation mark)

At symbol

Brace left

Brace right

Bracket opening

Bracket closing

$

=

,

!

-

#

%

Dollar symbol

Euro symbol

Equal sign

Comma

Exclamation point

Hyphen

Number sign

Percent

(

)

.

+

~

_

Parenthesis opening

Parenthesis closing

Period

Plus

Tilde

Underscore

NOTE: For more information regarding file-naming conventions, refer to the Microsoft Windows Developer Network article Naming a File and the Microsoft TechNet article How NTFS Works.