Opening BLS Files

The BLS file type is primarily associated with Standard Jet DB.

BLS	File extension: BLS
	File type:	structured log file

What is a BLS file?

BLS files mostly belong to Standard Jet DB. There are two main variants of BLS files. One variant uses the JetDB format and stores log data generated by JetBrains applications. These log files record system events and debugging details and are meant to be processed using specialized tools such as Standard Jet DB.
The second variant is based on XML. It is used for Bluetooth qualification projects to record test cases and technical data. This type is common among projects associated with Bluetooth SIG, and it is supported by applications like Bluetooth Launch Studio.
Key Points provided by FilExt.com:

Uses a proprietary JetDB structure for logging in JetBrains products.

Uses standard XML for Bluetooth test case data.

Each variant requires the right tool: the JetDB variant works best with a dedicated log viewer and the XML variant can be viewed in any XML-capable editor.

For further technical details, visit the avtims webpage or the Bluetooth core specification.

FilExt.com note: Both file types share the same BLS extension but serve distinct functions based on their internal format.

How to open a BLS file

You need a suitable software like Standard Jet DB to open a BLS file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your BLS file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a BLS file directly in the browser:. Just drag the file onto this browser window and drop it.

Online BLS Text Viewer

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Online File Viewer

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Programs that open and convert BLS files:

Standard Jet DB
See the previous paragraphs to learn more about the main application. BLS files are often referred to as Standard Jet DB databases because this type of file is primarily created or used by this software.
BIACORE Instruments and BIAlite (Project) by Biacore
Blockland (Saved Game) by Step 1: Games LLC
Blockland is a non-competitive multiplayer sandbox-style construction game. This file usually is found in the %Program Files%\Blockland\base\saves\ or %Program Files%\Blockland\saves\ folder. This file format is classified as Game.
Brush Lettering (Saved Brush Lettering Style) by EK Success, Ltd., pcCrafter, Inc.
Zipped folder with JPG files and variable text files.

Technical Data for BLS File Extension

File classification:

Database

Related files:

blsanal, bll, bmg, zip, blr, blc, ble, log, xml, db, txt, json

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: SAS.OutputLst.701
EXEFile: %ProgramFiles%\SAS\SAS9~1.1\CORE\SASEXE\SASOACT.EXE action

ProgramID: SAS.OutputLst.701
EXEFile: %ProgramFiles%\SAS\SASV8\CORE\SASEXE\SASOACT.EXE action

a bls structured log file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with BLS files

Associate the BLS file extension with the correct application.
Update your software that should actually open structured log files. Because only the current version supports the latest BLS file format. Search, therefore, e.g. on the manufacturer website after an available Standard Jet DB update.
To make sure that your BLS file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .BLS file online - secure, fast, and no downloads needed.