Files with a MAX extension are 3d animation program binary files. These files contain the information necessary to render 3d animation art and drawings in Autodesk 3D Studio. The files are proprietary to this software system, and are not backwards compatible with previous versions of the software.
3DS Max uses plug-in extensions which are proprietary to this software. These plug-ins are encoded into the MAX file format. Because of this, there is no reason to parse out industry-standard formats for other programs than 3DS Max. These files compress on save automatically. Upgrading software requires opening and resaving MAX files with new software encoding present.
In addition to the problem described above, i.e. the lack of the appropriate application to support the .MAX file, there may be several reasons that cause problems with opening and operation of the data format:
A quite common problem is the lack of application in the appropriate version. Even if you have an application, with the help of which you should open the .MAX file, you may have a problem with it because of its version. Perhaps in previous versions the application has not yet supported the .MAX file, so download the update and check again.
If you have already installed the appropriate application, and it is the correct version, the file may not open correctly, because the operating system does not have information that this program supports the file. So you need to "show" which program the computer should use. To do this:
It also happens that the file you want to open is corrupt and therefore there is no such possibility. In this situation, you should find its different version, or ask a person from whom you got, to send it again.