Can't open my InDesign file after changing format to idml.
I was working on a project for work and when I tried saving it today it was not allowing me to save the file as an .indd file so I thought saving it on an older .idml file would allow me to open it later. Now it's saying "Adobe InDesign may not support the file format, a plug-in that supports the file format may be missing, or the file may be open in another application." I really need to get this file back because it was the only one saved and had all the changes for over a weeks worth of work.
