HLC file icon

HLC File Extension

ESO MIDAS Help Command
  • Developer
    European Southern Observatory
  • Category
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What is HLC file?

Full format name of files that use HLC extension is ESO MIDAS Help Command. European Southern Observatory defined the ESO MIDAS Help Command format standard. Files with HLC extension may be used by programs distributed for Windows platform. Files with HLC extension are categorized as Misc Files files. The Misc Files subset comprises 6033 various file formats. The software recommended for managing HLC files is ESO-MIDAS. ESO-MIDAS software was developed by European Southern Observatory, and on its official website you may find more information about HLC files or the ESO-MIDAS software program.

Programs which support HLC file extension

Below is a table that list programs that support HLC files. HLC files can be encountered on all system platforms, including mobile, yet there is no guarantee each will properly support such files.

Programs that support HLC file

Windows Windows

How to open file with HLC extension?

Problems with accessing HLC may be due to various reasons. What is important, all common issues related to files with HLC extension can be resolved by the users themselves. The process is quick and doesn’t involve an IT expert. The list below will guide you through the process of addressing the encountered problem.

Step 1. Install ESO-MIDAS software

Install software to open HLC file Problems with opening and working with HLC files are most probably having to do with no proper software compatible with HLC files being present on your machine. The solution to this problem is very simple. Download ESO-MIDAS and install it on your device. Above you will find a complete listing of programs that support HLC files, classified according to system platforms for which they are available. One of the most risk-free method of downloading software is using links provided by official distributors. Visit ESO-MIDAS website and download the installer.

Step 2. Update ESO-MIDAS to the latest version

Update software that support file extension HLCIf the problems with opening HLC files still occur even after installing ESO-MIDAS, it is possible that you have an outdated version of the software. Check the developer’s website whether a newer version of ESO-MIDAS is available. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. If you have an older version of ESO-MIDAS installed, it may not support HLC format. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using ESO-MIDAS.

Step 3. Assign ESO-MIDAS to HLC files

After installing ESO-MIDAS (the most recent version) make sure that it is set as the default application to open HLC files. The method is quite simple and varies little across operating systems.

Associate software with HLC file on Windows

Change the default application in Windows

  • Right-click the HLC file and choose Open with option
  • Next, select the Choose another app option and then using More apps open the list of available applications
  • The last step is to select Look for another app on this PC option supply the directory path to the folder where ESO-MIDAS is installed. Now all that is left is to confirm your choice by selecting Always use this app to open HLC files and clicking OK.
Associate software with HLC file on Mac

Change the default application in Mac OS

  • By clicking right mouse button on the selected HLC file open the file menu and choose Information
  • Proceed to the Open with section. If its closed, click the title to access available options
  • From the list choose the appropriate program and confirm by clicking Change for all....
  • A message window should appear informing that This change will be applied to all files with HLC extension. By clicking Continue you confirm your selection.

Step 4. Check the HLC for errors

Should the problem still occur after following steps 1-3, check if the HLC file is valid. It is probable that the file is corrupted and thus cannot be accessed.

Check HLC file for viruses
1. Check the HLC file for viruses or malware

If the HLC is indeed infected, it is possible that the malware is blocking it from opening. Scan the HLC file as well as your computer for malware or viruses. If the HLC file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

If the HLC 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. If the HLC file has been downloaded from the internet only partially, try to redownload it.

3. Check if the user that you are logged as has administrative privileges.

Some files require elevated access rights to open them. Log out of your current account and log in to an account with sufficient access privileges. Then open the ESO MIDAS Help Command file.

4. Check whether your system can handle ESO-MIDAS

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

5. Check if you have the latest updates to the operating system and drivers

Regularly updated system, drivers, and programs keep your computer secure. This may also prevent problems with ESO MIDAS Help Command files. Outdated drivers or software may have caused the inability to use a peripheral device needed to handle HLC files.

Do you want to help?

If you have additional information about the HLC 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 HLC file.

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