# ifc-commit - Source : [duplex.ifc](https://gitaec.org/rvba/ifc-commit/src/commit/8f2d3a01a5327829859c1172999a42cb1a4a77e8/ifc/duplex.ifc) - Extract: [duplex_extract.ifc](https://gitaec.org/rvba/ifc-commit/src/commit/3a1a091a26a1ace0771c0ad6ae0b33cffcca2d97/ifc/duplex_extract.ifc) - Modify: [duplex_modified.ifc](https://gitaec.org/rvba/ifc-commit/src/commit/3a1a091a26a1ace0771c0ad6ae0b33cffcca2d97/ifc/duplex_modified.ifc) - Merge: [duplex_merge.ifc](https://gitaec.org/rvba/ifc-commit/src/commit/3a1a091a26a1ace0771c0ad6ae0b33cffcca2d97/ifc/duplex_merge.ifc)