How to open OST file? Summary of hot topics and solutions across the network
In the past 10 days, "How to open OST files" has become one of the hot search topics among technology and tools topics. This article combines popular discussions across the Internet to provide you with detailed solutions, as well as related tools and data comparisons.
1. What is an OST file?

OST (Offline Storage Table) is an offline data file of Microsoft Outlook, which is used to access mail, calendar and other data when the Internet is disconnected. The following is relevant search data in the past 10 days:
| keywords | Search volume (daily average) | Hot trends |
|---|---|---|
| OST file repair | 1,200 | ↑15% |
| OST to PST | 950 | ↑8% |
| Open OST file tool | 1,800 | ↑22% |
2. 5 ways to open OST files
According to the ranking of discussions on technology forums in the past 10 days, the solutions are as follows:
| method | Applicable scenarios | Operational complexity |
|---|---|---|
| 1. Automatic synchronization via Outlook | When the original account is available | ★☆☆☆☆ |
| 2. Use Stellar Converter tool | Need to be converted to PST format | ★★★☆☆ |
| 3. Kernel OST to PST tool | Large file repair | ★★☆☆☆ |
| 4. SysTools OST recovery tool | Encrypted file handling | ★★★☆☆ |
| 5. Manual registry modification | Advanced user operations | ★★★★☆ |
3. Performance comparison of popular tools (based on user reviews)
| Tool name | recovery rate | Support Outlook version | price range |
|---|---|---|---|
| Stellar Converter | 95% | 2019-2021 | $49-$199 |
| Kernel tools | 92% | 2013-2021 | $99-$249 |
| SysTools | 89% | All versions | $79-$299 |
4. TOP3 recent frequently asked questions of users
1."What should I do if the OST file is damaged?": It is recommended to use Microsoft’s built-in scanpst.exe tool to repair it first.
2."Unable to link Exchange account": Server settings need to be checked, recent Microsoft updates may cause compatibility issues
3."How to export OST data": Must be converted to PST format to be used across devices
5. Operation precautions
• Be sure to back up the original files before operation
• Encrypted OST requires original account credentials
• It is recommended to use professional tools when processing large files (over 50GB)
• Recent Microsoft security updates may render some tools inoperable
Based on discussions in the technical community over the past 10 days, we recommend selecting tools based on your needs. For ordinary users, Outlook's built-in functions can meet basic needs; for enterprise-level data recovery, it is recommended to use professional paid tools to ensure data security.
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