LRS File: What is it?

Researcher:   |   Revised: November 26, 2018

Microsoft Silver

LRS File Summary

File Extension LRS has two unique file types (with the primary being the Librie Reader Source File format) and is mostly associated with Calibre (Open Source) and two other software programs. The majority of LRS files are considered eBook Files, but they can also be Uncommon Files.

LRS files are found on both mobile and desktop platforms and can be opened using Windows, Mac, and Linux operating systems. The main LRS file type has a Popularity Rating of "Low", meaning these files are not frequently present on your typical desktop or mobile device.

Although there is a lot more to know about LRS files, those are the most important details of these types of files. If you are having trouble opening these files, or would like more detailed information, please see our comprehensive information below.

Low
Popularity
1977
Ranking

/ 11690

Active

Mode

26

November

2018

Updated

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Sorts of LRS Files

  2 known file types use this extension

Main LRS Affiliation

.LRS
Extension:.lrs
Type:Librie Reader Source File

The LRS file is a file used to generate an eBook for the Sony Portable Reader.The LRS file contains source data used to create a Sony "BroadBand eBook".The LRS file is saved in an XML format that describes eBook properties and contents.

Programmer: Open Source
Kind:eBook Files
Entry: HKEY_CLASSES_ROOT\.lrs

Software Programs That Open The Librie Reader Source File:


Calibre by Open Source

Windows
Mac
Linux

BookDesigner by Open Source

Windows

Alternative LRS Types

.LRS
Extension:.lrs
Type:Check Point License Request File

The LRS file is a file created by Check Point Full Disk Encryption.The LRS file saves a license file created server side when a new client machine with Check Point Full Disk Encryption installed communicates back to the license server.

Programmer: Check Point Software Technologies Ltd.
Kind:Uncommon Files

Software Programs That Open Check Point License Request File Files:


Check Point Full Disk Encryption by Check Point Software Technologies Ltd.

Compatible with:

Windows

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LRS Demand


Popular Devices

Desktop (84.34%)
Mobile (14.29%)
Tablet (1.37%)


Understanding LRS Issues


Frequent LRS Opening Issues

Calibre is Not Installed

You attempt to load your LRS file and get an error such as "%%os%% Can't Open The LRS File Extension". When this happens, it is commonly due to Calibre missing in %%os%%. You won't be able to double-click to open your LRS because your OS doesn't know what to do with it.


Tip: If you know of another program that can open your LRS file, you can try opening it by selecting the application from the programs listed.


Wrong Version of Calibre is Installed

In other instances, your Librie Reader Source File file version may not be supported by your version of Calibre. You will need to download a newer version of Calibre if you don't have the right version. This problem is predominately due to having a Librie Reader Source File file version that was created by a newer version of Calibre than what you have installed on your PC.


Tip: Find clues on the correct software version by right-clicking your LRS file and clicking "Properties".


Regardless, most of the LRS file opening problems relate to not having the right version of Calibre installed.


Other LRS File Opening Causes

Errors opening Librie Reader Source File files can still occur even with the latest Calibre software installed on your computer. There can be external issues inside of %%os%% that are causing these errors when opening LRSs. Issues that aren't software-related:

  • Invalid LRS file references in the Windows Registry (the "phonebook" of the Windows Operating System)
  • Deletion of the LRS file description from the Registry by mistake
  • Incomplete or bad installation of a software application associated with the LRS format
  • File corruption affecting your LRS file
  • Your LRS is infected with malware
  • Hardware associated with LRS has outdated drivers
  • Insufficient system resources to successfully open Librie Reader Source File files

Quiz: Which file extension is a type of raster image?








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