FIRST File Extension
Formatted Text
- File Type first
- Popularity
- Application Notepad++
- Category Text Files
What is a FIRST file?
The FIRST extension is related to Formatted Text and is classified in the Text Files category, which contains 315 files.
FIRST file support extends to various operating systems, including Windows, Linux and Mac OS. When working with FIRST files, you can rely on 3 programs, including Notepad++, Sublime Text and PSPad.
Programs that support FIRST files
How to open a FIRST file?
If you can’t open a FIRST 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.
Thanks to their popularity, Notepad++, Sublime Text and PSPad are often the go-to programs for managing FIRST files. If you need the newest version of Notepad++, just access the Notepad++ Team website. From there you can download the installer compatible with all systems.
Once setup is done, your operating system should assign Notepad++ as the default app for FIRST files.
Set Notepad++ as the default FIRST handler
Choose an app to open a file on Mac
- Right click or use Control + left click on the desired FIRST file to launch the file options menu;
- Choose "Open in Application" and click "Other";
- Scroll down to the bottom of the window, where you will find the "Enable" menu. Default, "Recommended Programs" will be selected;
- In this menu, choose "All Programs" and navigate to Notepad++. Check the box next to "Always open in app" to make it the default program.
Change a default app in Windows
- Take the first step by right-clicking on your FIRST file. Next, select "Open With" and then choose "Choose another app" from the available options;
- In the pop-up window, find and select the Notepad++ application from the available options;
- Make sure the "Always use this app" checkbox is checked and click "OK" to confirm your choice as the default app for opening FIRST files.
Effective solutions for FIRST file problems
If you encounter issues with FIRST files, don’t worry—most can be fixed with minor software adjustments. Refer to the troubleshooting tips below.
What can lead to sudden Notepad++ crashes?
Lack of software updates is a possible reason behind Notepad++ crash. Keep your Notepad++ Team products up to date by installing the latest updates.
Restarting your computer can resolve numerous common problems, so it should be the initial step before changing any software-related settings.
What is the recommended approach to repair a damaged FIRST file?
In a data recovery program, open the damaged FIRST file and select the "Repair" menu option. Wait for the recovery process to finish, allowing automatic repair of damaged text files.
How do I know if my FIRST file has been damaged?
Characteristics of corrupted FIRST text files can include:
- Error alerts occur when actions are performed on the file;
- Editing the archive in Notepad++ is hampered by poor overall performance;
- The file does not respond or shows errors when opening it;
- Unexplained FIRST file size inflation;
- The file stops responding or freezes in Notepad++ or other programs;
How to edit a FIRST file?
To modify FIRST files, you need to install special software that makes it possible to open and edit text files. Online FIRST editors are more restricted compared to software designed for Formatted Text.
Best FIRST Editor Software in 2026
Following these criteria, we have put together a list of recommended FIRST editors.
| FIRST 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) |