Widely used de facto standard format, GDSII has almost reached the limit in terms of its representation capability due to a huge increase in the size and accuracy of design data, and therefore migrating to OASIS is an imminent challenge.
"OASIS-Utility" provides a smooth migration path from GDSII to OASIS data environment not only with its direct OASIS data handling and interconversion capabilities, but also with a variety of features including cell hierarchy expansion, format check, limit check, and data dump.