Opening a LOF File

The LOF file type is primarily associated with Leica Microsystems LAS AF.

LOF	File extension: LOF
	File type:	specialized image file

What is a LOF file?

LOF files mostly belong to Leica Microsystems LAS AF. LOF files can serve two distinct roles.
One role is in microscope imaging. When used by Leica Microsystems LAS AF (and similar tools like Zeiss ZEN), a LOF file holds microscope image data along with embedded metadata. This format is designed for capturing, storing, and later analyzing images from high-precision microscopes.
The other role is in document preparation with LaTeX. Here, LOF files act as a list of figures, automatically generated to collect captions and page numbers for figures in a document.

• Microscope Imaging: Contains raw image data and associated technical details. Use Leica or compatible imaging software to open these files.
• Document Processing: Works as a supporting text file listing figures; any text editor or LaTeX compiler can display its content.

FilExt.com note: For more details, visit the pages of Leica Microsystems and LaTeX Project.

How to open a LOF file

You need a suitable software like Leica Microsystems LAS AF to open a LOF file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your LOF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LOF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online LOF Text Viewer

Choose your .lof file to analyze

or drag and drop it here

Online File Viewer

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LOF file format:

If you know the file format, you can also find out how to open or edit the file. The file format can be determined based on the file extension and the signature (the first few characters of a file). Nonetheless, different programs can utilize the same file extension to represent distinct file formats. Double-clicking on the file often results in an error when opening. When there is a problem with a file, the first step to solving it is to determine the file format. Our analysis of the LOF files produces the following result:

LOF is seldom used as a file extension and is used by different programs with different formats. But the following two file formats are common:

• 40% of all LOF files start with the bytes 70 00 00 00 36 00 00 00 2A 0F, which are crucial for this file format. The contents of these files cannot be read by a human; only a computer program can interpret the data. The file size is in the range of 1 MB to 25 MB. The file type is a fairly new file format. The keywords LMS_Object_File are typical for these files. A common filename is Image001.lof. These files can be linked to series.
• 10% of all LOF files start with the bytes \babel@toc { crucial for this file format. These files are text files, so they contain words and text. LOF files are between 980 bytes and 5 KB in size. The following keywords are characteristic: babel, toc, \contentsline {figure}{\numberline, ignorespaces, relax, \addvspace {10\p@ } and caption. Some examples of file names are output.lof.

All other LOF files (50%) have different formats, such as addvspace and select. Tagged as report or thesis. If you want to find out what your LOF file contains, drag and drop it onto this page.