While you cannot convert directly from .max to an older .max online, you can use free online cloud converters to translate the file into a universal 3D format. Once translated, you can import that file into any older version of 3ds Max. Recommended Online 3D Converters
Zamzar primarily works with the older .3DS format, not directly with version downgrading of modern .max files. Users looking to convert .max to FBX or OBJ for import into older 3ds Max versions may find this useful. Convert 3ds Max File To Older Version Online
Strategy 1: The Cloud-Based Interchange Workflow (No Software Needed) While you cannot convert directly from