REJ File Extension

Mercurial Reject

File Type rej
Popularity
4.6 (34 votes)
Application Sublime Text
Category Developer Files

What is a REJ file?

Files with the REJ extension are specifically tied to Mercurial Reject, a Developer Files type, and there are 1166 files in this category.

REJ files are compatible with various operating systems, including Mac OS, Linux and Windows. When working with REJ files, you can rely on 4 programs, including Sublime Text, Atom and PSPad.

Windows

Mac OS

Linux

How to open a REJ file?

If you can’t open a REJ file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.

Sublime Text, Atom and PSPad are among the most widely used programs for handling REJ files. To install the most up-to-date edition of Sublime Text, visit the official Sublime HQ Pty website. You can download the build that works across all operating systems.

After installing, your OS should instantly open REJ files with Sublime Text.

Setting Sublime Text as default REJ viewer

Change the default app for a file type in Mac

Initiate a right click or use Control + left click on the desired REJ file to open a menu where you can select various actions;
Choose "Open in Application" and click "Other";
Look towards the bottom of the window, where you will find the "Enable" menu. "Recommended programs" will be the default selection;
Choose "All Programs" in this menu and search for Sublime Text. Check the box next to "Always open in app" to set it as the default option.

Change default programs in Windows

Take the first step by right-clicking on your REJ file. Next, select "Open With" and then choose "Choose another app" from the available options;
Choose Sublime Text from the available applications listed in the pop-up window to set it as the default application to open your REJ file;
Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.

Tips and tricks to solve problems with REJ files

Problematic REJ files can usually be resolved by making small changes in your software. See the tips below to help fix common issues.

Are there any techniques or tools available to repair a damaged REJ file?

In a data recovery program, open the damaged REJ file and select the "Repair" menu option. Wait for the recovery process to finish as it will automatically restore the damaged developer files.

How do I know if my REJ file has been damaged?

The signs of corrupted REJ developer files can manifest as:

Error alerts occur when actions are performed on the file;
The file shows slow performance when edited in Sublime Text;
The file encounters problems during the opening process or shows error indications;
An unexplained increase in the size of the REJ file;
The file causes Sublime Text or other software to hang or crash during various operations;

What factors contribute to Sublime Text crash?

Lack of software updates is a possible reason behind Sublime Text crash. Keep your Sublime HQ Pty products up to date by installing the latest updates.

Restarting your computer is an essential troubleshooting step that can resolve many common problems. It is recommended to restart your computer before making any changes to the software settings.

How to edit a REJ file?

To modify REJ files, it is necessary to install dedicated software that lets you open and edit developer files. Online REJ editors generally offer fewer tools compared to programs designed for Mercurial Reject.

Best REJ editors 2026

Based on the specified criteria, here is a list of REJ editors that may fit your requirements.

REJ Editor Software	Developer	Platforms	Overall Rating
PSPad	Jan Fiala	Windows	4.7 out of 5 (41 review)
Notepad++	Notepad++ Team	Windows	4.6 out of 5 (37 reviews)
Sublime Text	Sublime HQ Pty	Windows, Mac OS, Linux	4.6 out of 5 (39 reviews)
Atom	-	Windows, Mac OS, Linux	4.1 out of 5 (36 reviews)

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