How to add column (after multiplication) in file imported from excel

I have an excel file. I imported the whole table using readtable command. Now i want to apply multiply and conditions on various columns which will result in new columns. I want to add those columns in the same file. how do i proceed

[Mohsin Munir]

Thanks. I would like to know how we can link excel formulae in columns with matlab. Is this possible?

Answer 1

[Wan Ji]

Then if you have new column named newColumn

previousTable = readtable('...');
newTable = [previousTable, table(newColunm)];
writetable(newTable, 'myNewTable.xls')