Remove Header and Footer text from dcm meta data file in flutter

Question

I want to remove some header and footer from a dicom or .dcm meta data file so that can able to view dicom/.dcm image file in my Flutter App. can anyone help here to solve this problem.

dicom meta data file link

dicom data file

Note : If you hit this url it will download a file and when open in text editor it will show the header and footer text from top and bottom respectively.