Question: using MATLAB only Write a program which reads a text file consisting of a matrix of comma separated numbers, appends the sum to each row
using MATLAB only

Write a program which reads a text file consisting of a matrix of comma separated numbers, appends the sum to each row and each column and rewrites the (tabulated) numbers back to another file. It should be possible for the user to select the name of this new file when the program is running. If the input file is as follows: Then the output produced should be
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