Opening LFF Files

The LFF file type is primarily associated with LibreCAD.

LFF	File extension: LFF
	File type:	data file

What is an LFF file?

LFF files mostly belong to LibreCAD. The LFF file extension is used in two distinct ways. It may be a LibreCAD Font File or a List Feature Format file that holds gene/ROI data.
When used as a LibreCAD Font File, the file stores font settings and design details that support text rendering in a CAD environment. It works with LibreCAD, where these fonts enhance drawing layouts.
When the file is a List Feature Format, it contains lists of genes or regions of interest. This format is used in genomic analysis software such as IGV and Lasergene SeqMan Pro.
Details include:

LibreCAD Font File: Defines font data for use in CAD software. Check out the LibreCAD website for more info.

List Feature Format File: Holds gene or ROI lists used in genomic data analysis. More details are available at the IGV documentation.

FilExt.com notes: Choosing the right application depends on the file’s content. If it is a font file, open it with LibreCAD. If it contains genomic lists, use the appropriate genomics tool.

How can I open an LFF file?

You need a suitable software like LibreCAD to open an LFF 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 LFF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LFF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online LFF File Viewer

Choose your .lff file to view this image

or drag and drop it here

Online File Viewer

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Easily convert LFF files to JPG, PDF, HTML, DOC, ...

You can convert LFF files using our online LFF file viewer (powered by Convert.Guru):

To do this, click the button "Choose your .lff file to view this image" on this page.
After your file is opened in browser,
click "Save as..." in the menu.
Then click the file format (e.g. PDF, JPG, DOCX, TXT, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert LFF files:

LibreCAD
See the previous paragraphs to learn more about the main application. LFF files are often referred to as LibreCAD fonts because this type of file is primarily created or used by this software.
LucasFilm Format
Related links: XnView

Technical Data for LFF File Extension

File classification:

Font

Related files:

fnt, ttf, gff, bed, roi, iff, zip, dxf

Related links:

XnView

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: GraphicsConverterPro.lff, FileType: LucasFilm Format, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: XnView.Image
EXEFile: %ProgramFiles%\XnView\xnview.exe %1

an lff data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with LFF files

Associate the LFF file extension with the correct application.
Update your software that should actually open data files. Because only the current version supports the latest LFF file format. Search, therefore, e.g. on the manufacturer website after an available LibreCAD update.
To make sure that your LFF file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .LFF file online - secure, fast, and no downloads needed.