How to close any file without saving it?

Hello, I want to know what is the command for closing a particular type of file without any requist to save it.

i.e. I want to know:

• How can I close all files from any type of application e.g. close all txt files that are open?
• How can I close those files automatically without saving?

I already know, for closing an excel file the following commands are used:

However when I use code, the application, (in this case excel) asks me if I want to save my file.

try
    Excel = actxGetRunningServer('Excel.Application');
    Excel.Quit; % Shut down Excel.
catch
end

Answer 1

[Chunru]

Is "fclose all" what you want?

[Hannah]

I think "fclose all" closes all open files, right? But I want to close files from a specified application e.g. close all txt files or close all Excel files.

[Chunru]

OS has no idea if a file is excel or txt files. User must maintain a list of files. For examples:

fidtxt(1) = fopen('textfile1', 'w');
fidtxt(2) = fopen('textfile2', 'w');

fidxls(1) = fopen('excelfile1', 'w');
fidxls(2) = fopen('excelfile2', 'w');

arrayfun(@(x) fclose(x), fidtxt);       % close all txt files
arrayfun(@(x) fclose(x), fidxls);       % close all txt files

[Hannah]

Is it not possible to use the handle 'actxGetRunningServer' to close a specific application?

[Chunru]

Excel = actxGetRunningServer('Excel.Application') will run the external exel server. You can check https://docs.microsoft.com/en-us/office/vba/api/overview/excel to see how the external server Quit the file without confirmation.

Try the follwing to see if you can skip the confirmation.

Excel = actxGetRunningServer('Excel.Application');
Excel.DisplayAlerts = false;
Excel.Quit

On the other hand, if you can replace the actx and use xlswrite, then you will not have the problem of confirming quit.