The file was saved in higher program version then the one used currently and cannot be opened" while file opening in Robot Structural Analysis | Robot Structural Analysis Products | Autodesk Knowledge Network
![Autodesk Robot 2018 Tutorial. Steel Level I | Structural analysis, Structure design, Advantages of solar energy Autodesk Robot 2018 Tutorial. Steel Level I | Structural analysis, Structure design, Advantages of solar energy](https://i.pinimg.com/originals/5e/88/ab/5e88ab0f2d758a42ffa6029c7a33421e.png)
Autodesk Robot 2018 Tutorial. Steel Level I | Structural analysis, Structure design, Advantages of solar energy
![Impossible to open selected file, already used by Robot? - Autodesk Community - Robot Structural Analysis Products Impossible to open selected file, already used by Robot? - Autodesk Community - Robot Structural Analysis Products](https://forums.autodesk.com/autodesk/attachments/autodesk/351/83912/1/error.jpg)