Getting an error on my reshape function

%%
[~,sheet_name]=xlsfinfo('Bunks.xlsx');
for k=1:numel(sheet_name)
  [~,data{k}]=xlsread('Bunks.xlsx',sheet_name{k});
end
  
for i=1:k
data2{:,i}=string(data{:,i});
end

clc
for j=1:k
    matchingstring{1,j}=regexp(data2{1,j}, '[A-Z]{2}\d{4}', 'match');
    for l=1:size(data{1,j},1)
        for m=1:size(data{1,j},2)
            element=data{1,j}(l,m);
            
            count=isstrprop(element,'alpha');
            if nnz(cell2mat(count))>7
                 newdata{1,j}(l,m)=element;
            end
        end
    end
end

%% till the above line it works fine
for it4=1:k
           D1=newdata{1,it4}.';
           out{1,it4} = reshape(D1(~cellfun(@isempty,D1)),size(newdata{1,it4},1),[])';
           out{1,it4} =convertStringsToChars(out{1,it4});
end
           

[Geoff Hayes]

Prajwal - what is the error message? Please copy and paste the full error message to this question.