Patches in Text Format
The most convenient way to exchange Max patches with others is to convert them to text files which can be emailed more easily than trying to send patches as email attachments or creating StuffIt files. Max lets you convert an entire patch or a portion of one to a text file, and to convert Max patches saved in text format to visual patches automatically.
You can exchange Max patches in text format between Macintosh and Windows machines. If a text format Max patch contains a third-party Max object or an abstraction you don't have on your system, you'll see an error message in the Max window
and the Max object will be differently colored, although it will appear with the correct number of inlets and outlets.
If someone sends you a Max patch with a user interface they have created using Presentation Mode and they have set the patch to open in Presentation mode, you'll see the user interface when you convert the file. To edit the patch, switch to Patcher mode by clicking on the Presentation Mode icon in the Patcher Window toolbar.

Saving a finished patch as text

Saving a Max patch in Text format

Saving a portion of a patch as text

Converting a text file to a Max patch