3dsmax
After installing Autodesk 3ds Max, install following scripts:
Click on Customize > Customize User Interface...
Then in Menus tab, select W3D Importer in Category, and move the Coolfile W3D Importer into the File menu.
To import W3D File, select File > Import W3D.
To unload it, select File > Reset.
Note: the W3D Importer does not necessarily produce perfect imports. Vertices counts may differ between the original W3D mesh and the imported W3D mesh. If the mesh looks ok, you can use it however.
To Export W3D File, select File > Export and choose the W3D file format in the Save Dialog.
To rescale a W3D animation, import the W3D file, click on the Time Configuration button at the bottom, hit Re-scale Time button and then specify the new Frame Length.
Note: 30 frames correspond the 1 game second.
