File Extension FAS

.FAS File

File extension: FAS
File type: DNA and Protein Sequence Alignment

Notes about the FAS file extension:

To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened" (Windows 7) or "How do you want to open this file?" (Windows 10) if you double-click the file. There click on "More apps" and choose a suitable software to view such files on your PC or from email attachments.

The FAS file type is primarily associated with 'FASTA Format'. FASTA is a DNA and Protein sequence alignment software package first described (as FASTP) by David J. Lipman and William R. Pearson in 1985 in the article Rapid and sensitive protein similarity searches. The original FASTP program was designed for protein sequence similarity searching. FASTA format files often have file extensions like .fa, .mpfa, .fna, .fsa, .fas or .fasta.

Detailed information for file extension FAS:

Primary association: FASTA Format
Identifying characters Hex: 3E , ASCII:
Related links: Wikipedia FASTA Page, Wikipedia FASTA Format Page

Other applications associated with file type FAS:

  • 3D Fassade Plus (Basic Module)
  • AutoCAD (Fast-load Auto LISP) by Autodesk, Inc. The identifying characters used for this association are - Hex: 0D 0A 20 46 41 53 34 2D 46 49 4C 45 20 3B 20 44 6F 20 6E 6F 74 20 63 68 61 6E 67 65 20 69 74 21 0D 0A , ASCII: FAS4-FILE ; Do not change it! Program ID: AutoCADAutoLISPFastLoadFile , AutoCADLTAutoLISPFastLoadFile
  • Common-Lisp (Pre-compiled File)Typically lower case on *nix systems.
  • Macsyma Compiled Program
File Identifier - TrID
'Identifying characters' used on are
provided by Marco Pontello from his TrID database

To change file associations press Windows Key + X and then Apps and Features > Default apps > Choose default apps by file type. Invalid file associations could be the result of underlying issues within your Windows PC.

Technical data

To view technical data on file-extension FAS click this link to expand/hide the additional area.

System Info for File Extension .FAS

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: AutoCADAutoLISPFastLoadFile, FileType: AutoCAD Fast-load AutoLISP File

ProgramID: AutoCADLTAutoLISPFastLoadFile, FileType: AutoCAD LT Fast-load AutoLISP File

ProgramID: FMAdvisorInternetDefinitionFile
EXEFile: %ProgramFiles%\Fujitsu\FM Advisor\advcheck.exe /D:%1

Did this entry help you? Next time avoid the search engines and come directly to FILExt.

Home | How To Use FILExt | Tell Us About an Extension | FAQ | Terms | Privacy
© Copyright 2000- FILExt - All Rights Reserved. Microsoft is a trademark of the Microsoft group of companies