"Taking more than 5 minutes is hardly evidence of "it didn't work"."
I agree, that's why I pointed out that it was in terms of duration. I only could compare with my try, which doesn't put footnotes marks at the correct place but did this bad job in less than 2 minutes.
Well, I made another try with the first code, and after 5 minutes, I had a warning from Windows that memory was not enough. I ignored it, and my computer almost crashed (I hardly could close Word which showed an occupation of 5 Go RAM...).

The last code with DoEvents is working since 10 minutes and the application is still inaccessible. I had to stop and the file is KO... :-(