Files with hst file extension are also chat-logs saved with Yahoo Messanger.
There are 4 other file types using
the HST file extension!
.hst - Corel WordPerfect Office history data
.hst - Symantec Procomm Plus history file
.hst - Netscape history
.hst - VGA Planets game file
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What is hst file? How to open hst files?
The hst file extension is associated with Yahoo Messenger and used for its history files.
These hst files contain saved chat-logs details and also messages received whilst the user is offline.
The default software associated to open hst file:
Yahoo! Instant Messenger 
Company or developer:
Yahoo, Inc.
Yahoo! Messenger is free multi-platfom instant messaging service and client. Yahoo! Messenger is able to send text messages, transport files as well as establish the voice and video calls.
Help how to open:
Use Yahoo Messenger to view content of *.hst files.
How to convert:
As far as we know, this .hst file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.
List of software applications associated to the .hst file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open hst file, edit hst file, convert hst file, view hst file, play hst file etc. (if exist software for corresponding action in File-Extensions.org's database).
Hint:
Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting hst files.
Software that open hst file - Yahooo Messenger history
Programs supporting the exension hst on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Yahoo! Instant Messenger for open hst file action.
hst file editor and apps that can edit hst file - Yahooo Messenger history
Programs supporting the exension hst on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Yahoo! Instant Messenger for edit hst file action.
Programs that can create hst file - Yahooo Messenger history
Programs supporting the exension hst on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Yahoo! Instant Messenger for create hst file action.
Unspecified and all other actions for computer programs working with hst file - Yahooo Messenger history
Click on the software link for more information about Yahoo! Instant Messenger. Yahoo! Instant Messenger uses hst file type for its internal purposes and/or also by different way than common edit or open file actions (eg. to install/execute/support an application itself, to store application or user data, configure program etc.).
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