BLT file format description

Many people share .blt files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .blt file can be edited, converted or printed with. On this page, we try to provide assistance for handling .blt files.

1 filename extension(s) found in our database.

.blt - AOL Instant Messenger Buddy List

The BLT data files are related to AOL Instant Messenger. The BLT file is an AOL Instant Messenger Buddy List. AOL Instant Messenger (AIM) is an advertisement-supported proprietary instant messaging and presence computer program which uses the OSCAR instant messaging protocol and the TOC protocol to allow registered users to communicate in real time.

AOL Instant Messenger
Data files
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AOL Instant Messenger Buddy List related extensions:
FBB Initialization Settings Data
Intuit Quicken Data
Corel Script
EarthView Data
Kribi 3D Model
MedCalc MOGG Data

Naturally, other applications may also use the .blt file extension. Even harmful programs can create .blt files. Be especially cautious with .blt files coming from an unknown source!

Can't open a .blt file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .blt file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

bit, bkt, bl, blf, blg, blr, bly, bmt, bot, bpt, bt, btl, flt, glt, hlt

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

Xilinx Bitstream Data
IBM InfoSphere Blueprint Director Document
FAiRLiGHT Group Abbreviation
Ultimate Stunts Text 3D Model
Biacore BIAlite Project Data
BIAS Fringe Processor Image

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8/10, Windows 11, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, macOS, Mac OS X, iOS, Android

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If you have useful information about the .blt file format, then write to us! >> BLT file