R45 File Extension

Split Multi-volume RAR Compressed Format Archive (part 47)
- File Type r45
- Developer Eugene Roshal
- Popularity
- Application WinRAR
- Category Compressed Files
What is a R45 file?
The R45 extension is related to Split Multi-volume RAR Compressed Format Archive (part 47) and is classified in the Compressed Files category, which contains 820 files.
With the creation of the Split Multi-volume RAR Compressed Format Archive (part 47) (R45), Eugene Roshal introduced file format along with programs built for their use.
R45 files are compatible with various operating systems, including Windows and Mac OS. You can extract a R45 file using one of 3 programs, for example WinRAR, Ez7z and 7-zip.
How to open a R45 file?
The most common reason why a R45 file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.
WinRAR, Ez7z and 7-zip are among the most widely used programs for handling R45 files. If you wish to install the latest release of WinRAR, visit the official win.rar GmbH portal and download the edition that works on any operating system.
Following installation, R45 files should be automatically opened with WinRAR.
Set WinRAR as the default R45 application
Change the default app that opens a file on Mac
- Right-click or use Control + Left-click on the desired R45 file to open a menu where you can choose from multiple actions;
- Choose "Open in Application" and click "Other";
- Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
- Within this menu select "All Programs" and navigate to WinRAR. Check the box next to "Always open in app" to make sure it’s the default option.
Change default programs in Windows
- Start the process by right-clicking on your R45 file and selecting "Open With". From there, click "Choose another app" to continue;
- From the options listed in the pop-up window, specifically choose WinRAR as the application to handle your R45 file;
- Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.
Troubleshooting guide for R45 file complications
When issues arise with R45 files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.
What are the possible solutions to recover a corrupt R45 file?
Start a recovery program, open the damaged R45 file and then select the "Repair" menu item to start the repair procedure. Wait for the recovery process to finish, allowing automatic repair of damaged compressed files.
How can I confirm if my R45 file has been damaged?
The signs of corrupted R45 compressed files can manifest as:
- The file shows slow performance when edited in WinRAR;
- The file stops responding or freezes in WinRAR or other programs;
- The file does not respond or shows errors when opening it;
- Unexplained R45 file size inflation;
- The file operation is accompanied by the display of error messages;
What are the possible causes of WinRAR crashing?
Lack of regular software updates can cause WinRAR to crash. Make sure you have installed the latest updates for win.rar GmbH products.
Restarting your computer is a crucial troubleshooting measure that can alleviate numerous common problems. Therefore, it is advisable to restart your computer before modifying any settings related to the software.
How to edit a R45 file?
To modify R45 files, it is necessary to install dedicated software that lets you open and edit compressed files. Online R45 editors generally offer fewer tools compared to programs designed for Split Multi-volume RAR Compressed Format Archive (part 47).
Best R45 Editor Software in 2026
Taking into account the provided details, we have prepared a list of R45 editors that match your needs.
| R45 Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| WinRAR | win.rar GmbH | Windows | 4.3 out of 5 (40 reviews) |





