You could put the strings into quotation marks and then use %q in textscan:
%q String, where double quotation marks indicate text to keep together
EDIT: If you only need to do that once (and not automatically via script in another process), what about manually importing the data from the CSV-File into MATLAB (via the import-tool provided by matlab:
)
and then maybe save the imported variables simply to a MAT-file so you can access it easier in the future!?