extracting the last three characters from cell array

[FileName,pathname,d] = uigetfile('*.SP3','Choose the products','MultiSelect','on');
FileName =

  1×2 cell array

    {'COD0MGXFIN_20210870000_01D_05M_ORB.SP3'}    {'COD0MGXFIN_20210880000_01D_05M_ORB.SP3'}

When FileName consists of single file, I extract the last three characters of FileName as follows:

    FileName(end-2:end) 

When FileName consists of multiple files (as shown above), how can I extract the last three characters of FileName?

Answer 1

[Simon Chan]

Use cellfun to retrieve the last three charaters

FileNameinCell=cellfun(@(x) x(end-2:end), FileName, 'UniformOutput', false)

FileNameinCell =

{'SP3'}    {'SP3'}

FileNameinCell{1} , FileNameinCell{2}, etc =

'SP3'

Answer 2

[Rik]

You probably want to extract the extension, instead of hard-coding the last three characters:

data={'COD0MGXFIN_20210870000_01D_05M_ORB.SP3','COD0MGXFIN_20210880000_01D_05M_ORB.SP3'};
[~,~,ext]=cellfun(@fileparts,data,'UniformOutput',false);
YouWant=strrep(ext,'.','')

YouWant = 1×2 cell array
    {'SP3'}    {'SP3'}