What is a .ADM file?
The .ADM file is a type of file known as an Administrative Template File. It is created by a program called Extensis Portfolio. This happens specifically when someone is using Extensis Portfolio to open a catalog file, which has the extension .FDB, in a special mode called admin mode. The purpose of creating this .ADM file is related to managing the catalog while it's being used in this mode.
Normally, you don't have to worry about this .ADM file because it is supposed to be automatically deleted once you close the catalog in Extensis Portfolio. However, there are times when this file might not get deleted as it should. If you notice the .ADM file is still there after you've closed your catalog, you can delete it yourself without causing any problems.
To open or deal with an .ADM file, you would primarily use the Extensis Portfolio program. This is the software designed to work with these files, especially since it's the one that creates them in the first place. So, if you're working with .FDB catalog files in Extensis Portfolio and you come across an .ADM file, remember it's a part of the administrative process within the software, and it's safe to delete if it hasn't been removed automatically after you're done working in admin mode.
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