Only display desired files using uigetfile

I want to use the uigetfile function to open a folder to select files. This is easy enough however the file location has a lot of different files and file names.

Thefore I want to be able to filter the folder to only show files that contain specific words in their file name. For example if the folder contained A1.mat, A2.Mat, B1.mat, B2.Mat, C1.mat, C2.Mat, D1.mat, D2.Mat and I only wanted the files with A intheir name can I wtire the code to display only files with A.

The code I currently have is:

[MATfiles,path2] = uigetfile('*.mat','Select MAT files' ...
    , 'C:\Users\Sean\Desktop\Sean\PhD\Study 1\Outputs\SubjectMeans\'...
    , 'MultiSelect','on');
 nFiles = size(MATfiles,2);

Answer 1

[ES]

Just use A*.mat for FILTERSPEC

[MATfiles,path2] = uigetfile('A*.mat','Select MAT files' ...
    , 'C:\Users\Sean\Desktop\Sean\PhD\Study 1\Outputs\SubjectMeans\'...
    , 'MultiSelect','on');
 nFiles = size(MATfiles,2);

[Sean Byrne]

Thankyou