The issue is now resolved. You can download the version that contains the hotfix from Here
When trying to import data from MS Project into the Office Timeline Add-in, the process fails and you receive the following error message.
You're certain that the file isn't actually corrupted or password-protected. What's going on?
Overview & Solution
Because of recent changes in Microsoft's Aspose library, there is a connectivity issue between Office Timeline – or any other add-in – and some of the latest versions of Microsoft Project.
We're sorry for the inconvenience – we have already raised a ticket with Aspose and they ensured us they will release a fix by the end of July. In the meantime, there is a workaround you can use: export your Project data to Excel and then import it into Office Timeline:
Copy & paste or export your data from MS Project to Excel.
Save your Excel spreadsheet and import it into Office Timeline. The video below shows the exact Excel Import steps:
If you still have trouble importing your data or encounter any other issues, please don't hesitate to contact us by clicking the Submit a ticket button at the button of this page. We'll be happy to help!