IFC (Industry Foundation Classes) is an open file format standard for Building Information Modeling (BIM) that is used to exchange and share data among different software applications in the architecture, engineering, and construction (AEC) industry. It was developed by BuildingSMART (formerly the International Alliance for Interoperability) to address the need for a common data model that could be used to create, exchange, and share building information throughout the lifecycle of a construction project. IFC files contain rich data about a building or infrastructure project, including geometric and non-geometric information such as building elements, properties, relationships, and much more. One of the key benefits of the IFC file format is its ability to enable interoperability and collaboration among different software applications used in the AEC industry. By using a standardized data model, IFC files allow various BIM software tools to exchange and share information seamlessly, regardless of the platform or vendor. This interoperability is essential for facilitating integrated project delivery, reducing errors, and improving overall project efficiency. Additionally, IFC files are platform-independent, meaning that they can be used with different operating systems and software platforms, further promoting collaboration and flexibility. As the AEC industry continues to embrace digitalization and BIM methodologies, the importance of IFC files has become increasingly recognized. Their adoption has been instrumental in improving communication, coordination, and data sharing among project stakeholders, including architects, engineers, contractors, and facility managers. Moreover, the use of IFC files supports the creation of comprehensive digital twins, which are virtual representations of physical assets that can be used for analysis, simulation, and facility management. In conclusion, the IFC file format plays a critical role in the advancement of BIM and the digital transformation of the AEC industry. Its open, interoperable nature fosters collaboration and data exchange, ultimately leading to more efficient and streamlined construction projects. As BIM continues to evolve, the use of IFC files will remain fundamental in achieving greater integration and communication across the building lifecycle.