When open a Sketch or Adobe XD file through Abstract, you’ll be asked whether you want to Open Untracked or Create a Branch.
If you only want to view the file, select Open Untracked.
Creating a branch
If you plan on making changes to the file, select Create a Branch. Then, follow these branching instructions.
Warning: If you make any changes to the file after selecting Open Untracked, your changes cannot be committed to Abstract.