You could create a file with just two or three such files, create the new version of your file and swap them to see what happens. You can then report back here if it works or does not work.
Please let's not go there again. I just felt it was likely you would know the answer.
There's more than just me answering questions here. Someone else may know, but I've seen this particular question go unanswered before.
Since I didn't know the answer to this one I suggested a very simple test that you can use to discover the answer for yourself.