nst extension occupied a large amount of storage space. So, when users find out this new file extension (.nst) with large size, they get confused. But, keep in mind that users cannot access the group document library unless you have a cached local copy available locally. The reason behind it is that only cached mode let users work in offline with group conversations. If a user wants to access Office 365 Groups in Outlook, it needs to be configured in cached Exchange mode. So, can anyone tell me about this file? Is it ok to delete it from the local machine?' I do not understand, what file it is or what data it stores? Can I delete this Office 365 Outlook NST file or it contains some crucial data? Yesterday, I configured Office 365 account in my Outlook 2016. There is an Outlook.nst file, which is 5 GB in size. 'Recently, I have noticed that my hard drive storage is reaching its maximum limit. Apart from this, shared mailbox and other mailbox folders can normally be accessed from OST file stored on the local machine.Ĭan I delete Outlook NST file from my local machine? nst file extension (also called as NST of Office 365 groups) stores only calendars and group conversation in it.
nst as a file extension) is controlled or managed by Outlook slider. The amount of data synchronized in GST (using.
