I am importing the data set and trying to change the variable type for the second column, "GROSS_QTY" from a char to a double. I am following the example Matlab published (Here - "Detect and Use Import Options for Text Files").
This is to explain what is happening when using the function detectImportOptions:
It seems the csv file format is inconsistent. Therefore, detectImportOptions is not able to guess the right format. The function only detects the comma ',' delimiter while the last column ends with semicolon ';' is not detected. To fix this issue, explicitly specify the delimiters.
However, this will cause the detectImportOptions to not correctly detect the columns names (because there is only a comma in the headers line) so you also need to specify them.