File Extension Search

.lqr File Extension

Developer: N/A
File type: SQ Compressed LBR Archive File
You're here because you have a file that has a file extension ending in .lqr. Files with the file extension .lqr can only be launched by certain applications. It's possible that .lqr files are data files rather than documents or media, which means they're not meant to be viewed at all.

what is a .lqr file?

Compressed files contain one or more files that have been reduced in terms of file size for easier and quicker distribution via the Internet or through portable media like optical disks such as DVDs and CDs among other external data storage devices. An SQ compressed LBR archive file is generally classified as a compressed file, which means a file or files stored in this format may be integrated with compression specifications implemented by a certain compression algorithm. In particular, an SQ compressed LBR archive file is integrated with compression standards used by the SQ file compression and decompression tool, and these SQ compressed LBR archive files are also implemented with encoding specifications used for the LQR file format. Files in the LQR format are affixed with the .lqr extension and are used by the LU program for its archive of files. The LQR extension has been replaced by more widely used compression standards and encoding specificaitons, including the RAR and ZIP format among others.

how to open a .lqr file?

Launch a .lqr file, or any other file on your PC, by double-clicking it. If your file associations are set up correctly, the application that's meant to open your .lqr file will open it. It's possible you may need to download or purchase the correct application. It's also possible that you have the correct application on your PC, but .lqr files aren't yet associated with it. In this case, when you try to open a .lqr file, you can tell Windows which application is the correct one for that file. From then on, opening a  .lqr file will open the correct application. Click here to fix .lqr file association errors

applications that open a .lqr file

SQ (DOS/Windows)

SQ (DOS/Windows)

SQ (DOS/Windows) is a data compression program from the early 1980s that is used on both DOS and CP/M computer systems. Data compression or bit-rate reduction involves encoding information using fewer bits than the original representation. It is a useful application because it helps reduce usage, such as data storage space or transmission capacity. Text files compressed with SQ are identified by the use of the letter “Q” in the middle initial of the file extension, and the text files ended with the extension, for example, executable files are labeled .EQE or .CQM, while text files are labeled .TQT. Groups of files compressed with SQ were often combined and stored in an archive using the LU (Library Utility) program. The archive files created from this process carried the .LBR file extensions. Individual files were compressed singly, or the LBR archive was itself compressed with SQ. Due to the development of ARC programs that combine compression and archiving, SQ became obsolete on most systems except for CP/M that lacked an ARC port.

a word of warning

Be careful not to rename the extension on .lqr files, or any other files. This will not change the file type. Only special conversion software can change a file from one file type to another.

what is a file extension?

A file extension is the set of three or four characters at the end of a filename; in this case, .lqr. File extensions tell you what type of file it is, and tell Windows what programs can open it. Windows often associates a default program to each file extension, so that when you double-click the file, the program launches automatically. When that program is no longer on your PC, you can sometimes get an error when you try to open the associated file.
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