Zend certified PHP/Magento developer

Change sequence of fields in the CSV while exporting it from admin

I have a module that exports some data from admin to CSV file. Everything works fine but now I need to rearrange the CSV columns. I need to change the sequence of some fields in the CSV. Here is the screenshot of what is required.

enter image description here

I need to move the where column to first position in the CSV. In the same way I need to alter the position of different columns too. I would have done it manually but there are 32 columns and doing it daily could take a lot of time. We are using ui component method to export the CSV. SCreenshot

enter image description here

I tried searching for it but did not find anything. Plz guide me how I can go on arranging the CSV columns according to my need during the export process.