Types of HRL Files

Dominant HRL File Type

.HRL

File Name:	.hrl
Class:	Erlang Header File

A source code file in Erlang programing language that is used to develop real-time systems for e-commerce, instant messaging, and computer telephony. It is utilized as a header file which is included in the Erlang source files. It is usually used to store macros shared by various software components.

Developer:	Ericsson Computer Science Laboratory
Division:	Developer Files
Folder:	HKEY_CLASSES_ROOT\.hrl

Software Programs That Open The Erlang Header File:

Microsoft Notepad by Microsoft Corporation

Windows

Mac

Linux

Notepad++ by Don Ho

Windows

Mac

Linux

MacroMates TextMate by MacroMates

Mac

Microsoft WordPad by Microsoft Corporation

Windows

Apple TextEdit by Apple

Mac

Sublime Text by Sublime HQ Pty Ltd

Windows

Mac

Linux

AbiWord by Open Source

Windows

Mac

Linux

OpenOffice Writer by Apache Software Foundation

Windows

Linux

Solaris

OS X El Capitan

Boxer by Boxer Software

Windows

ConTEXT by ConTEXT Project

Windows

UltraEdit by IDM Computer Solutions

Windows

Mac

Linux

Erlang by Ericsson Computer Science Laboratory

Windows

PSPad by Open Source

Windows

Optional Offer for FileViewPro by Solvusoft | EULA | Privacy Policy | Terms | Uninstall

HRL File Complications

Typical HRL Opening Challenges

Microsoft Notepad Removed

When you double-click your HRL file, you may see a dialog box from your operating system stating that it "Cannot Open This File Type". Generally, this is experienced in %%os%% because Microsoft Notepad isn't installed on your PC. The typical path of opening your HRL with a double-click won't work because %%os%% cannot make the program connection.

Tip: When you have another program installed that you know will open your HRL, you can select it from the other programs listed (see "Show Apps").

Microsoft Notepad Requires Update

It is possible that your version of Microsoft Notepad isn't able to open your Erlang Header File file due to incompatibility. If you've got the wrong version of Microsoft Notepad installed, you'll need to install the correct version. This issue mainly occurs when your Erlang Header File file was created by a newer version of Microsoft Notepad than you have on your PC.

Tip: You can sometimes get hints about the right program version by right-clicking on the HRL file, selecting "Properties", and looking at the version information.

Ultimately, most of the difficulties opening HRL files are due to having the wrong version of Microsoft Notepad installed.

Additional HRL Opening Issues

Errors opening Erlang Header File files can still occur even with the latest Microsoft Notepad software installed on your computer. Other HRL opening errors can be created by other system problems inside of %%os%%. Problems unrelated to software:

• Invalid HRL file references in the Windows Registry (the "phonebook" of the Windows Operating System)
• Deletion of the HRL file description from the Registry by mistake
• Invalid installation of a HRL-associated program (eg. Microsoft Notepad)
• File corruption affecting your HRL file
• Your HRL has adversely impacted by malware
• Device drivers of the hardware associated with your HRL file are corrupt or out-of-date
• Insufficient system resources to successfully open Erlang Header File files