hi, I´ve just bought a WD elements to make back up of my outlook ( Office for Mac), but when I try to export the .olm file it does not copy telling this message: " error exporting data, no access to directory".
Hi carlositurrioz,
As the drive which you purchase is pre-formatted in NTFS file system, which is compatible with Windows OS. So, you can first reformat the drive to make it compatible with macOS. Afterwards, you can transfer the data from your computer to the external hard drive. Below is the link which helps you in formatting the drive.
Note: Formatting is a data-destructive process. Please make sure you have a data saved on some other location. Formatting the drive will erase every data from it which can’t be undone.
hi Peter, and thanks so much for your msg.
Actually I´ve already did formatted the drive ( WD) into mac OS with the help of an Apple support technician and, in fact, I can now make security copies, but the problem is that I cannot make a copy of the outlook( e-mail program); the " .olm files".
I have another device ( I Omega) and with that one I do not have that problem and can copy also de Outlook. Therefore I do not know what is the difference between the two devices.
I´ve spoken to Microsoft and they say that it might be a problem with the device, which is not possible because it works very well. Apple support says it should be Microsift to give the support; TYPICAL 
