X1F File - opening and understanding

Did your computer fail to open an X1F file? We explain what they are used for and recommend software that we know can open or otherwise handle your .X1F files.

What is an X1F file?

An .X1F file is an X Millennium OPM log file. Through our analysis of X1F files, we know that one use of the format is X Millennium OPM log. We have not yet described in detail what these files contain and what they are used for, but our team is working tiredlessly through thousands of file formats. We'd love hearing from you if you have information about the format.

How to open X1F files

You will need a program compatible with the specific file you are trying to open, as different programs may use files with file extension X1F for different purposes.

We have not yet verified any programs for Windows that work with this specific file format. If you know one, please use the 'Suggest a program' link below. Thanks!

Suggest another file format using extension X1F

While we know of one file format using the .X1F file extension, there may be more. It is widespread that different programs use files with the same file extension for very different types of data. Please let us know if you are aware of a different kind of .X1F file.