I am trying to make corrections on a file that was sent to me by someone else. I can open the file to my computer and save it under a different name, but once I make any changes to the file it won't allow me to save them. The original file was created on a pc and I am working on a mac, is that the problem? Anyone has any insight on how to resolve this? Any input would be appreciated! Thanks
Files are cross platform compatible
Try save as an IDML file. Open that. Rename it to a new name.