[Thank you for forking exceljs]
Hope this forked exceljs can address the license concerns as below.
exceljs#2744

[Copy from https://github.com/exceljs/issues/2743]
Unzipper itself has released latest version 0.11.2 which remove the dependency on buffers
Can exceljs upgrade to use latest version of unzipper, so that we can eliminate the license concerns?

Link related on unzipper:
https://www.npmjs.com/package/unzipper
ZJONSSON/node-unzipper#283

Post related on license concerns:
exceljs#2703
exceljs#2687
exceljs#2686