Import file .ost vào outlook

When you add an email tài khoản khổng lồ Outlook, a local copy of your information is stored on your computer. This feature allows you lớn access your previously downloaded or synchronized email messages, calendar information, contacts, and tasks without an internet connection.

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Certain types of accounts, such as POP accounts, store their information in Outlook Data Files (.pst files). Outlook 365 accounts, Exchange accounts, IMAP accounts, & Outlook.com accounts store their information in Offline Outlook Data Files (.ost files).

Outlook Data File (.pst)

An Outlook Data File (.pst) contains your messages và other Outlook items & is saved on your computer. POP.. accounts—which is a comtháng type of tài khoản you can create when adding an tin nhắn tài khoản from an internet service provider (ISP) lượt thích Xfinity or AT&T or Cox—tải về all of your tin nhắn messages from your mail server & save them on your computer.


Tip: If your Outlook Data File (.pst) becomes large it can slow down your OneDrive sầu sync & may show "Processing changes" or "A file is in use". Learn How to lớn remove an Outlook .pst data file from OneDrive.


Note: In Outlook 2013 & earlier versions, IMAPhường accounts also used an Outlook Data File (.pst). In Outlook năm nhâm thìn & Outlook for twrising.com 365, IMAPhường accounts use Offline Outlook Data Files (.ost).

You can also use an Outlook Data File (.pst) khổng lồ backup or export items from any type of email tài khoản. For more information on backing up your email messages, calendar, contact, & task data, see Export or backup tin nhắn, contacts, và calendar to an Outlook .pst file. You can also import tin nhắn messages, calendar, liên hệ, and task data from another Outlook Data File (.pst). For more information about importing items, see Import gmail, contacts, & calendar from an Outlook .pst tệp tin.

Note: You cannot import from an Offline Outlook Data File (.ost) tệp tin.

Because these files are saved on your computer, they aren’t subject to lớn mailbox kích thước limits on a mail server. By moving items lớn an Outlook Data File (.pst) on your computer, you can free up storage space in the mailbox on your mail VPS.

When messages or other Outlook items are saved in an Outlook Data File (.pst), the items are available only on the computer where the tệp tin is saved.

See more: Cách Khắc Phục Điện Thoại Mất Sóng, Điện Thoại Bị Mất Sóng Là Bị Làm Sao

Offline Outlook Data File (.ost)

Most other tài khoản types, such as IMAPhường accounts, twrising.com 365 accounts, Exchange accounts, & Outlook.com accounts use an Offline Outlook Data File (.ost) tệp tin lớn store a synchronized copy of your mailbox information on your local computer. When your connection to lớn the mail hệ thống is interrupted, for example, when you"re on an airplane without WiFi or if your internet connection disconnects, you can still access all emails, calendar data, contacts, & tasks that have sầu been previously downloaded. You can read and compose messages, create appointments, và add contacts. However, your email messages won"t be sent and no new messages will be downloaded until your internet connection is restored.

When the connection is restored, changes are automatically synchronized, and the folders & items on the hệ thống and on your computer are identical again.

Outlook Group Storage File (.nst)

The first time you access a Group in Outlook, a new type of Outlook data file is created. This file has an extension of .nst, & stores your Groups conversations and other local Groups data. All of this information is synchronized between your computer và the tin nhắn hệ thống, so there is no need khổng lồ back up this file or import it when you set up Outlook on a new computer. 

File locations

The faschạy thử way khổng lồ open the thư mục where your Outlook Data Files (.pst và .ost) are saved is lớn vày the following:

In Outlook, clichồng the File tab.

In right pane, click Account Settings, và then cliông chồng Account Settings.

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On the Data Files tab, cliông xã an entry, and then cliông chồng xuất hiện Folder Location.

Outlook Data Files (.pst) created by using Outlook 2013 or Outlook năm nhâm thìn are typically saved on your computer in the DocumentsOutlook Files thư mục. If you upgraded khổng lồ Outlook on a computer that already had data files that were created in twrising.com Office Outlook 2007 or earlier, these files are saved in a different location in a hidden thư mục at drive:UsersuserAppDataLocal wrising.comOutlook.


Tip: If your Outlook Data File (.pst) becomes large it can slow down your OneDrive sync and may show "Processing changes" or "A tệp tin is in use". Learn How khổng lồ remove an Outlook .pst data file from OneDrive sầu.

See more: Cách Thay Đổi Màn Hình Chờ Win 10, Cách Thay Đổi Nền Màn Hình Khóa Trong Windows 10


The offline Outlook Data File (.ost) is also saved at drive:UsersuserAppDataLocal wrising.comOutlook. Most data remains on the server; however, any items that are saved locally should be backed up. For example, Calendar, Contacts, Tasks, & any folders marked Local only.


Related Topics

Create an Outlook Data File (.pst) lớn save your information Import tin nhắn, contacts, & calendar from an Outlook .pst tệp tin Repair Outlook Data Files (.pst và .ost)