Hey there, Ubuntu users! Want to open .obj files for 3D modeling? I've got you covered. Here's how to do it:

Step 1: Open your terminal. You can do this by using the shortcut Ctrl + Alt + T or searching for 'Terminal' in the applications.

Step 2: Navigate to the directory where your .obj file is located using the 'cd' command. For example, if your file is in the Documents folder, type 'cd Documents' and press Enter.

Step 3: Once you're in the directory, you can use a 3D modeling software like Blender to open the .obj file. If you don't have Blender installed, you can do so by typing 'sudo apt install blender' and entering your password when prompted.

Step 4: After installing Blender, you can run the software by typing 'blender' in the terminal and pressing Enter.

Step 5: In Blender, go to File > Open and navigate to the directory where your .obj file is located. Select the file and click 'Import OBJ' to open it in Blender.

And there you have it! You've successfully opened a .obj file in Ubuntu and can now access and edit the 3D model data. Have fun exploring and creating amazing 3D models on your Ubuntu system!