Forum Discussion
co-authoring
Hi, Like to know whether Office 2016 client is required on the machine to be able to use co-authoring in Office 365? If the client version is not dependent to be able to use this feature, wha...
"Word and PowerPoint on all devices and versions more recent than Office 2010 support regular co-authoring. The Excel mobile apps and Excel 2016 with Office 365 also support regular co-authoring. Real-time co-authoring is supported in Word 2016, Word Online and PowerPoint Online."
from https://support.office.com/en-us/article/Document-collaboration-and-co-authoring-ee1509b4-1f6e-401e-b04a-782d26f564a4
Please read carefully in the article the difference between regular co-authoring and real-time co-authoring, together with all the requirements for it to work.