# Search all OST files get a list in order to extract files

**URL:** <https://sleuthkit.discourse.group/t/search-all-ost-files-get-a-list-in-order-to-extract-files/252>\
**Category:** Autopsy Help\
**Created:** [September 10, 2019, 12:36pm UTC](https://sleuthkit.discourse.group/t/search-all-ost-files-get-a-list-in-order-to-extract-files/252 "2019-09-10T12:36:54Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![klllmmm](https://avatars.discourse-cdn.com/v4/letter/k/e95f7d/32.png) [@klllmmm](https://sleuthkit.discourse.group/u/klllmmm)\
**Post date:** [September 10, 2019, 12:36pm UTC](https://sleuthkit.discourse.group/t/search-all-ost-files-get-a-list-in-order-to-extract-files/252/1 "2019-09-10T12:36:54Z")

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Hi,

I’m trying to run a search to get a list of all files with .ost extension. I want to extract/export these files.  
I think there is no MIME type for this file type. Is there a way to get this done without manually look through the data source.?

 ![Autopsy_FileSearch](https://global.discourse-cdn.com/free1/uploads/sleuthkit/original/1X/79cf1d4f5478b48331aecbc4a328326b944a2323.jpeg)

Appreciate your thoughts on this.

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**Author:** ![Mark\_McKinnon](https://yyz2.discourse-cdn.com/free1/user_avatar/sleuthkit.discourse.group/mark_mckinnon/32/42_2.png) [@Mark\_McKinnon](https://sleuthkit.discourse.group/u/Mark_McKinnon)\
**Post date:** [September 10, 2019, 1:25pm UTC](https://sleuthkit.discourse.group/t/search-all-ost-files-get-a-list-in-order-to-extract-files/252/2 "2019-09-10T13:25:44Z")

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Try looking for the mime type application/vnd.ms-outlook-pst since ost and pst should have the same file header.

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**Author:** ![apriestman](https://yyz2.discourse-cdn.com/free1/user_avatar/sleuthkit.discourse.group/apriestman/32/24_2.png) [@apriestman](https://sleuthkit.discourse.group/u/apriestman)\
**Post date:** [September 10, 2019, 2:08pm UTC](https://sleuthkit.discourse.group/t/search-all-ost-files-get-a-list-in-order-to-extract-files/252/3 "2019-09-10T14:08:28Z")

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It looks like Mark’s solution does what you need, but another general option for finding files with a specific extension is to use the Interesting Files ingest module. Every matching file will end up under the Interesting Items section of the Results node in the tree.

[http://sleuthkit.org/autopsy/docs/user-docs/4.12.0/interesting\_files\_identifier\_page.html](http://sleuthkit.org/autopsy/docs/user-docs/4.12.0/interesting_files_identifier_page.html)