ESO MIDAS Help Command
European Southern Observatory
Misc Files
mime-type/not-avalible
11/05/2021
Sometimes you just need to see what is in the HLC file, without having to perform more complicated operations. Then do not install dedicated software and use tools such as HLC Viewer. This type of tool is nothing more than a program or an online application that allows you to easily view the content of the data stored in the HLC file. You have several options to view the contents of the HLC file:
If our HLC Viewer Online did not help you, you have a few more options. For starters, we suggest installing software that supports HLC files You can try to open your HLC file with one of these applications. By using the dedicated software you will have more options, e.g. editing the HLC file or converting the HLC file to a different file format.
Note, however, that this solution requires you to download and install the software dedicated to handling the HLC file on your device. Unfortunately, it is not possible to see the HLC file online in this case. This solution is more problematic, but also allows for more processing options for the HLC file. You can find some examples of dedicated software below, and the full list is here HLC File Opener
If you still cannot see the contents of the HLC file, but also don't see the need to install dedicated software, then there are other solutions. A large proportion of the data formats are simply archives or plain text files. In this case, it is likely that you will be able to view the contents of HLC with a normal "Notepad". This solution does not guarantee that the problem will be solved, but it will often allow you to view the data in the HLC file to some extent.
The second attempt may be with a data archiving program. Try to open your file with e.g. Winrar or Winzip. If your HLC file belongs to the archived files category, you will see a list of files inside the archive. To get information about what kind of data it is, go to the subpage with information about the HLC file extension.
You can also try to use solutions offered by external suppliers, such as:
Free Online File Viewer Service
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