Basic information about FAS file

When there is a problem with opening files with the file extension FAS（*.FAS or *.fas）, you do not need a computer expert. In most cases, using the helpful suggestions of experts contained in our website as well as appropriate programs, you can solve the problem with the FAS file yourself.

There are 3 file types using the FAS file extension in our database. In the further part of this page, you will find detail information about all the FAS file with their brief description and a list of programs that support FAS file sorted by operating systems. The table below provides useful information about the FAS file extension. It answers questions such as:
  • What is the FAS file?
  • How to open a FAS file?
  • What programs do I need to open a FAS file?
  • What programs help to create and edit a FAS file?
  • How to convert FAS files to another file format?
  • How to convert another files to FAS file format?


1.Detail information about FAS file extension: QuickSilver Fast Save Lisp File

File type QuickSilver Fast Save Lisp File Category Executable Files
Developer BroadVision File format N/A
Description FAS file is a QuickSilver Fast Save Lisp File developed by BroadVision. Compiled Lisp (.LSP) file saved in the "Fast Save Lisp Format" by Interleaf or QuickSilver; contains compiled code that can be executed by the program; may be generated by selecting either the DTK→Compile→Buffer or DTK→Lisp→Compile menu commands.
Software programs that will open, edit or convert FAS files

Windows		 BroadVision QuickSilver
BroadVision Interleaf 6 and later

Linux		 BroadVision QuickSilver
BroadVision Interleaf 6 and later


2.Detail information about FAS file extension: Compiled Fast-Load AutoLISP File

File type Compiled Fast-Load AutoLISP File Category Executable Files
Developer Autodesk File format Binary
Description FAS file is a Compiled Fast-Load AutoLISP File developed by Autodesk.
Software programs that will open, edit or convert FAS files

Windows		 Autodesk AutoCAD 2018


3.Detail information about FAS file extension: FASTA Sequence File

File type FASTA Sequence File Category Data Files
Developer N/A File format Text
Description FAS file is a FASTA Sequence File.
Software programs that will open, edit or convert FAS files

Windows		 Heracle BioSoft DNA Baser
GSL Biotech SnapGene
Genome Compiler

macOS
 GSL Biotech SnapGene
Genome Compiler



Can't open a FAS file?

When you click a file to open it, operating system examines the filename extension. If operating system recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When operating system does not recognize a filename extension, you receive the following message:

”Can't open this file: example.FAS”。

To open this file, you install one of the applications from the list of software programs that you found here, you should be able to open, edit or convert the file with the FAS extension without any issue.


Where I can download the application that support FAS file?

If you do not know where you can download the application from our list, click on the link (which is the name of the program), you will find more information there on the location where to download the required application. Most often they are the websites of software manufacturers.


How to change file associations?

  • Right-click a file with the extension whose association you want to change, and then click "Open With".
  • In the "Open With" dialog box, click the program whith which you want the file to open, or click "Browse" to locate the program that you want.
  • Select the ”Always use the selected program to open this kind of file” check box.


Can I change the extension of FAS files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read/open the file. The problem is, changing the file extension does not change the file format. Select a software program from our list and install it on your computer. If the file has not opened correctly, you have to look for a different software program from our list. Sometimes you have to repeat the operation several times.


What else may cause problems width open a FAS file?

The reasons for the lack of the ability to open a FAS file on your computer may be at least several. The easiest thing is to find a suitable application installed on your computer, which will open a FAS file. If there is still something wrong, you might want to check:

  • Whether the FAS file is damaged.
  • Whether the FAS file is incorrectly linked in the registry entries.
  • Whether the FAS file extension has been accidentally removed from the Windows registry.
  • Whether the installation of an application that supports the FAS file format is incompletely.
  • Whether the FAS file is infected.
  • Whether the drivers of the equipment used for opening a FAS file are up to date.
  • Whether your computer has enough hardware resources to open a FAS file.

If the FAS file still not working with your software after eliminating the above shortcomings? That means that the problem is more complex and requires the help of a specialist.