It's not a matrix. It's a cell array.
You can try converting the whole thing to strings with something like:
[M{:}]
Where M is your array... But that joins them with no spaces... How about adding a space to each entry maybe:
Msp = cellfun(@(x) [x,' '], x, 'uni', 0);
Mstr = [Msp{:}]
Bit hacky, I know... But it might work for you.
Otherwise maybe you want to use regexp. It'll work on cell arrays of strings. Then you probably won't require sscanf.
