Montage appears not to work

Hi. I have a directory with 28 images in of format that I want to montage. I have read the help and searched on line, but still i cannnot get it to work.

fileFolder='C\Temp2'
dirOutput = dir(fullfile(fileFolder,'*.tif')); 
fileNames = {dirOutput.name}; 
figure
montage(fileNames, 'Size', [4 7]);

The naming of the images is illustrated below.

Can anyone suggest how to get it to work. the error message is "FILENAMES must be a cell array of strings."

could I also ask if there is a way to use the montage function but in a zigzag manner?

thanks Jason

[Sean de Wolski]

What does filenames look like before the call to montage?

fileNames
whos fileNames
iscellstr(fileNames)

[Image Analyst]

Explain what zigazg manner is.

[Jason]

Sean, heres the response:

fileFolder =

C\Temp2

Name           Size            Bytes  Class    Attributes

fileNames      0x0                 0  cell

and the response from iscellstr is "1".

_ * * Image analyst * * _ , by Zig zag I mean the layout follows an "s" shape. i.e. if the first row of 7 images goes from left to right, then the 2nd row of images goes from right to left, then the third from left to right and so on.

thanks

[Jason]

I found my mistake - missing Colon!!

fileFolder='C\Temp2'

should be fileFolder='C:\Temp2'

I would still like to know how to zigzag.