Putting a cell into a .mat file

I have an cell which contains images that I would like to put into a .mat file so I can export it into another software. I cannot figure out how to save my cell of images into a .mat file? Is there an easy way to do this?

%% Loading images

% Checking how many items are in the folder
num_images = dir(['Images' '\*.tif']);

num_images = numel(num_images);

%% Compiling images into .mat file

list = dir("Images\*.tif");
filenames = {list.name};
pathnames = {list.folder};



for i = 1:num_images

    filename = filenames{i};
    pathname = pathnames{i};
    ImagesToSave{i} = imread(fullfile(pathname, filename));

end

save('test.mat', ImagesToSave{:})

Undefined variable 'ImagesToSave'.

Answer 1

[Kevin Holly]

save('test.mat', 'ImagesToSave')

Answer 2

[Walter Roberson]

%% Loading images

imgfolder = 'Images';

% Checking how many items are in the folder
list = dir( fullfile(imgfolder, '*.tif'));

num_images = numel(list);

%% Compiling images into array

fullnames = fullfile({list.folder}, {list.name});

ImagesToSave = cell(num_images,1);

for i = 1:num_images
    thisfile = fullenames{i};
    ImagesToSave{i} = imread(thisfile);
end

%save as .mat file
save('test.mat', 'ImagesToSave')