There is a file created in one of Adobe programs. The file was damaged and in the native program doesn't open. Extension of the *.indd file.
In attempt to open writes: "file ... is damaged (Error code: 4)".
Thus without problems it is copied anywhere.
The file was lying quietly on the disk a few months after finishing work with him and manufacturing PDF. And here suddenly it was required to change a source code. And it doesn't open.
Whether it is possible to restore somehow, even if with loss of some part of data?