Excel 2011 & 365 – 2nd user cannot open password protected file which is already opened by 1st user

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Infos: Mac environment, AFP Share on Synology, Sierra 10.12.6

With Office 2011, when a password protected file is opened and another user tries to open it, it asks whether you want to open the file in read-only mode and tells you which user is using the file. This is expected and needed in our environment.

Now, with Office 365 on one of our PCs, this is not possible anymore. When the second user (Office 365) tries to open the already opened file (Office 2011) it gives the following error:
Error Message
If I want to "repair" the seemingly corrupted file, a second error pops up:
2nd Error Message

The same can be observed when the file is first opened on a Mac with Office 2016 and then on the Mac with Office 365 (or vice versa). Excel versions are: Office 365 Ver: 16.17, Office 2016 Ver: 16.16.2

Any help is greatly appreciated.

stz

Posted 2018-10-10T08:22:28.897

Reputation: 1

1Does this happen on all the Macs in your environment? – Kinnectus – 2018-10-10T08:38:28.267

At this time we have the new Office installations only on 2 macs for evaluation purposes. – stz – 2018-10-10T08:53:25.010

It might be worth performing a disk/permissions check on the mac hard disk to see if everything is alright with program files... disk First Aid – Kinnectus – 2018-10-10T12:02:22.537

Answers

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Update: The root of the cause is the Synology AFP Service.

I contacted Synology Support and they could reproduce the errors.

The developers know about this issue and are working on it.

Hope this helps anyone who has the same problem.

stz

Posted 2018-10-10T08:22:28.897

Reputation: 1