Import Issue | WordPress.org

Trying to import a big site (5.2GB) but it keeps putting out this error when the importer hits a 100% –

 The imported package is invalid. Please create another package and retry the import.
Error: Invalid header marker !X?. Location:5577343323

I have already tried creating a new package twice but it outputs the same issue. Can confirm that both have the same duplicator versions. Can’t see the solution on the docs and online forums too