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- Repair Outlook Data Files (. pst and . ost) - Microsoft Support
If you're using an Exchange email account, you can delete the offline Outlook Data File ( ost) and Outlook will recreate the offline Outlook Data File ( ost) the next time you open Outlook
- Open or import items from an offline Outlook Data File (. ost)
Outlook Data Files ( ost) are used when you have an Exchange account and want to work offline or use or use the default Cached Exchange Mode This type of data file is also used for accounts that you set up with the Outlook Connector for Outlook com (formerly Hotmail)
- Open and find items in an Outlook Data File (. pst)
Outlook Data Files ( pst), or Personal Storage Tables files, contain Outlook user messages and other Outlook items, such as contacts, appointments, tasks, notes, and journal entries You might also use an Outlook data file to backup messages or store older items locally on your computer to keep the size of your mailbox small We currently provide different levels of support for Outlook Data
- Reduce the size of your mailbox and Outlook Data Files (. pst and . ost . . .
If you use an Microsoft 365, Exchange, IMAP, or Outlook com account, a copy of your mailbox is stored in an Offline Outlook Data File ( ost) To reduce the size of your Outlook Data File ( pst) or Offline Outlook Data File ( ost), you can manually compact the data file
- 縮小信箱和 Outlook 數據檔 (. pst 和 . ost) - Microsoft 支援服務
瞭解如何找出信箱及其資料夾的大小，以及如何壓縮 Outlook 資料檔 ( pst 和 ost) ，這可能有助於改善效能。
- Create an Outlook Data File (. pst) to save your information
Some accounts (IMAP, Microsoft Exchange Server, and Outlook com) use an offline Outlook Data File ( ost) This is a synchronized copy of the messages saved on a server
- 從離線 Outlook 資料檔 (. ost) 開啟或匯入項目 - Microsoft 支援服務
當您有 Exchange 帳戶，並且想要離線工作或使用預設 Exchange 快取模式 (離線) 時，就會使用 Outlook 資料檔 ( ost)。 此資料檔類型也適用於您透過適用於 Outlook com (先前稱為 Hotmail) 的 Outlook Connector 設定的帳戶。
- 修復 Outlook 資料檔 (. pst 與 . ost) - Microsoft 支援服務
如果您使用的是 Exchange 電子郵件帳戶，您可以刪除離線 Outlook 數據檔 ( ost) ，Outlook 會在下次開啟 Outlook 時重新建立離線 Outlook 資料檔 ( ost) 。
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