Main Content


Edit or create file



edit opens a new file called Untitled.m in the Editor. MATLAB® does not automatically save Untitled.m.


edit file opens the specified file in the Editor. If file does not already exist, MATLAB asks if you want to create it. file can include a partial path, complete path, relative path, or no path. If file includes a partial path or no path, edit will look for the file on the search path. You must have write permission to the path to create file. Otherwise, MATLAB ignores the argument.

You must specify the extension to open .mdl files. Editing MAT-files and binary files such as P-code files and MEX-files is not supported using the edit function.


edit file1 ... fileN opens each file, file1 ... fileN, in the Editor.


collapse all

Create and open a new file titled Untitled.m in the MATLAB® Editor (or default editor). Untitled.m does not appear in your Current Folder.


Create two new files in a new folder.

Create a file in a new directory using a character vector. A dialog box appears, asking if you want to create new_script.m. Click Yes to create and open tests/new_script.m.

mkdir tests
edit tests/new_script.m

Create a second file using a string. Click Yes to create and open tests/new_script2.m.

S = "tests/new_script2.m";

Create and open the files file1, file2, file3, and file4 in sequence.

edit file1 file2 file3 file4

Input Arguments

collapse all

File name, specified as a character vector or string. If file specifies a path that contains a nonexistent folder, MATLAB throws an error. Specify multiple files on the same line by separating file names with a space.

If you do not specify the extension and MATLAB is unable to find file, then edit creates a file with the specified name and a .m extension.

If file is overloaded (that is, appears in multiple folders on the search path), then include a partial path to edit the correct page, such as:

edit folderName/file

If the file is part of a class or namespace, then either specify the path and extension or separate the components of the name with periods, such as:


Data Types: char | string

Version History

Introduced before R2006a