LRF File Extension

What is LRF file?

LRF is a file extension commonly associated with Sony Portable Reader Format files. Sony Portable Reader Format specification was created by Sony. Files with LRF extension may be used by programs distributed for Linux, Mac OS, Windows platform. LRF file format, along with 440 other file formats, belongs to the Text Files category. Sony Reader supports LRF files and is the most frequently used program to handle such files, yet 6 other tools may also be used.

Programs which support LRF file extension

The following list contains programs grouped by 3 operating systems that support LRF files. LRF files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

How to open file with LRF extension?

Problems with accessing LRF may be due to various reasons. What is important, all common issues related to files with LRF extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. We have prepared a listing of which will help you resolve your problems with LRF files.

Step 1. Download and install Sony Reader

The main and most frequent cause precluding users form opening LRF files is that no program that can handle LRF files is installed on user’s system. The most obvious solution is to download and install Sony Reader or one to the listed programs: Calibre, Makelrf, Hamster Free eBook Converter. The full list of programs grouped by operating systems can be found above. The safest method of downloading Sony Reader installed is by going to developer’s website () and downloading the software using provided links.

Step 2. Check the version of Sony Reader and update if needed

If the problems with opening LRF files still occur even after installing Sony Reader, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of Sony Reader is available. Software developers may implement support for more modern file formats in updated versions of their products. The reason that Sony Reader cannot handle files with LRF may be that the software is outdated. The latest version of Sony Reader should support all file formats that where compatible with older versions of the software.

Step 3. Associate Sony Portable Reader Format files with Sony Reader

If the issue has not been solved in the previous step, you should associate LRF files with latest version of Sony Reader you have installed on your device. The method is quite simple and varies little across operating systems.

The procedure to change the default program in Windows

• Choose the Open with entry from the file menu accessed by right-mouse clicking on the LRF file
• Select Choose another app → More apps
• The last step is to select Look for another app on this PC option supply the directory path to the folder where Sony Reader is installed. Now all that is left is to confirm your choice by selecting Always use this app to open LRF files and clicking OK.

The procedure to change the default program in Mac OS

• From the drop-down menu, accessed by clicking the file with LRF extension, select Information
• Open the Open with section by clicking its name
• Select the appropriate software and save your settings by clicking Change all
• If you followed the previous steps a message should appear: This change will be applied to all files with LRF extension. Next, click the Continue button to finalize the process.

Step 4. Ensure that the LRF file is complete and free of errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper LRF file. Being unable to access the file can be related to various issues.

1. The LRF may be infected with malware – make sure to scan it with an antivirus tool.

Should it happed that the LRF is infected with a virus, this may be that cause that prevents you from accessing it. Scan the LRF file as well as your computer for malware or viruses. If the LRF file is indeed infected follow the instructions below.

2. Ensure the file with LRF extension is complete and error-free

If the LRF file was sent to you by someone else, ask this person to resend the file to you. The file might have been copied erroneously and the data lost integrity, which precludes from accessing the file. It could happen the the download process of file with LRF extension was interrupted and the file data is defective. Download the file again from the same source.

3. Verify whether your account has administrative rights

There is a possibility that the file in question can only be accessed by users with sufficient system privileges. Log out of your current account and log in to an account with sufficient access privileges. Then open the Sony Portable Reader Format file.

4. Verify that your device fulfills the requirements to be able to open Sony Reader

The operating systems may note enough free resources to run the application that support LRF files. Close all running programs and try opening the LRF file.

5. Verify that your operating system and drivers are up to date

Up-to-date system and drivers not only makes your computer more secure, but also may solve problems with Sony Portable Reader Format file. It is possible that one of the available system or driver updates may solve the problems with LRF files affecting older versions of given software.

Do you want to help?

If you have additional information about the LRF file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on LRF file.