Is it possible to save an Excel 2010 file so that only a single user has got access to it at a given time. I understand this could be done by means of passwords but I have about 10 people who could be accessing a particular document, but it is really important that whoever is using the document at any given time that no other users can get into the file, even as Read-Only. In other words is it possible to turn the read only access off so that if someone is in the file that absolutely no other user can get any access?
Thanks.
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