OLL Files: What It Is and How to Open It

If you've received OLL files and can't open them for some reason, and you want to know what it is and what to do about it, keep on reading!

OLL files are typically a type of binary file used by certain software, and many software packages can share a common file extension. In the case of files with an OLL extension, popular software packages such as TrialDirector Load File and TrialDirector Object Load List can open it.


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How to Open Your OLL File

The easiest way to open file extension OLL is to try downloading some of the most popular software that uses OLL extension. The most well-known programs associated with OLL files include TrialDirector Load File and TrialDirector Object Load List.

Computer Files

As you may already know, if you have TrialDirector Load File or TrialDirector Object Load List, you can simply double-click on your OLL and it should open up. But what if your software does not open the file?

First, try right-clicking on the file and selecting "Open With..." and select TrialDirector Load File or TrialDirector Object Load List from the dropdown list. If that didn't work, go into the file associations settings of Windows, and set TrialDirector Load File or TrialDirector Object Load List to open OLL files by default.

Please note that OLL file extensions may not be limited to TrialDirector Load File or TrialDirector Object Load List only. You could always do a Google search to find other software that uses OLL files and download that to try to open your file.

Still no luck? Get in touch with the developer of the software title to see if they can be of assistance. If your software does not have an identified developer in the chart below, a quick web search of the software title should give you some clues on who to contact.

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Software Developer
TrialDirector Load File inData Corporation
TrialDirector Object Load List Microsoft Developer


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