All about RAS Files

The RAS file type is primarily associated with XnView.

RAS	File extension: RAS
	File type:	black and white image

What is a RAS file?

RAS files mostly belong to XnView by XnSoft. RAS filename extension is associated with grayscale and RGB color images stored in Sun Raster file format. It was the native raster image file format for saving bitmapped images on SunOS operating system. RAS image file format is supported by image processing programs such as XnView and GIMP. RAS is also one of the filename extensions associated with CALS Raster Type 1 image file format. RAS files that are saved in CALS Raster format are bi-level images compressed using CCITT Group 4 compression. Max Payne, a 3D action-adventure video game, saves game data such as music, sounds, textures, level information, and models in RAS files. SmartLab Studio, a guidance software for SmartLab x-ray diffractometer, uses RAS as a data file format. The contents of these files include a header, measurements, temperature, and other x-ray diffraction data coded in text and/or binary format.

How to open RAS files

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

Online RAS File Viewer

Choose your .ras file to view this image

or drag and drop it here

Online File Viewer

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Easily convert RAS files to JPG, PNG, SVG, PDF, ...

If you want to convert or edit a RAS file, you can use our free Online RAS File Converter (powered by Convert.Guru):

Just click the "Choose your .ras file to view this image" button on this page.
After your file is opened in browser,
click "Save as..." in the menu.
Then choose the image format (e.g. JPG, PNG, TIFF, PDF, ...) you want.
Your file will be converted and downloaded.

Programs that open and convert RAS files:

XnView by XnSoft
See the previous paragraphs to learn more about the main application. RAS files are often referred to as XnView raster images because this type of file is primarily created or used by this software.
GIMP (image) by The GIMP Team
GIMP is a free and open source raster graphics editor that is mainly used on Linux operating system. Windows and MacOS editions of GIMP are also available for free and it can be used to view, edit, and export images saved in Sun Raster (RAS) file format. This file format is classified as Raster Image.
Max Payne (game data) by Rockstar
Max Payne is a third-person shooter video game for desktop, mobile, and console platforms. Game assets such as sounds, music, textures, level information, and models used in Max Payne are stored in RAS files. This file format is classified as Game.
PaintShop (image) by Sun
PaintShow is a Windows-based photo editor and raster graphics design software for enhancing photos. Images saved in Sun Raster file format can be opened with this tool. This file format is classified as Raster Image. Related links: XnView, IrfanView
rtcorr (sky subtracted data) by NOT
rtcorr is real-time photometry data correction program. It accepts a file as input and outputs RTP files. The RAS file generated by rtcorr contains the new sky subtracted data which is created when rtcorr receives RAW data as input. This file format is classified as Data.
SmartLab Studio (x-ray powder diffraction analysis data) by Rigaku
SmartLab Studio is an x-ray diffractometer software for analyzing, measuring, visualizing, and reporting x-ray powder diffraction data. It stores various measurement, temperature, and displacement information in RAS files. This file format is classified as Data.

RAS file format:

Each file has a definite file format, that is, how the stored data is arranged in the file. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. If the file extension does not match the file format, double-clicking on the file will cause an error upon opening. When there is a problem with a file, the first step to solving it is to determine the file format. Below is our analysis of the RAS files:

The RAS file extension is used very often and is used by different programs with different formats. The two most popular formats are as follows:

40% of all RAS files are associated with Rigaku XRD RAS format. If you open these files in a text editor, you can view and read the content yourself. The file size is in the range of 26 KB to 200 KB. The file type was developed only in the last few years. The keywords *RAS_DATA_START, *RAS_HEADER_START, *DISP_FMT_Y "%.0f", *DISP_LINE_COLOR "255.0000000000", *DISP_LINE_STYLE "0.0000000000", DISP_FULLSCALE, DISP_LINE_WIDTH and *DISP_FMT_X "%.2f" are typical for these files. Files like these are about reswell, powder, swell, material and cuzif.
20% of all RAS files are Max Payne data files. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are on average 160 MB in size and range from 17 MB to 390 MB. Examples of file names are x_data.ras or MP2_Data.ras. Such files are related to data, music, english, level, sounds and levels.

The remaining 40% of all RAS files are files with no common format, often e.g. Sun Raster bitmap, srcdocid and SIG. These files sometimes refer to sample, andreeav, russian, polish, calss or kbpm. You can get all the details of your RAS file by dragging it onto this page or by clicking the button "Choose your .ras file to view this image" above.

Technical Data for RAS File Extension

File classification:

Raster Image

Related files:

rasx, raw, raster, zip, asc, cals, sun, xy, mp2m, rar, firmware, das, mpm, check, rms, txt, rsa, bin, gz, jpg, jif, xpm, jpf

Related links:

SwiftView

Mime type:

image/x-cmu-raster, image/x-sun-raster, text/plain

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: ACDSee.ras, FileType: ACDSee RAS Image, AppName: ACDSee

ProgramID: ACDSee.RAS, FileType: ACDSee RAS Image, AppName: ACDSee for Windows 95/98/2000/NT

ProgramID: ACDSee6.ras, FileType: ACDSee6 RAS Image, AppName: ACDSee 6.0 Application
EXEFile: ACDSee6.exe

ProgramID: ACDSee6.ras, FileType: ACDSee6 RAS Image, AppName: ACDSee Application

ProgramID: ACDSee6.ras, FileType: ACDSee6 RAS Image, AppName: Internet Explorer

ProgramID: FotoCanvas2.RAS, FileType: FotoCanvas RAS Image, AppName: FotoCanvas2
EXEFile: FotoCanvas2.exe

ProgramID: GraphicsConverterPro.ras, FileType: Sun Raster Images, AppName: GraphicsConverter-reg
EXEFile: GraphicsConverter.exe

ProgramID: ICPlus, AppName: ImageEditor Plus
EXEFile: ICPlus.exe

ProgramID: IrfanView.ras, FileType: IrfanView RAS File, AppName: IrfanView
EXEFile: i_view32.exe

ProgramID: MGIPSIII_RAS, FileType: MGI PhotoSuite III Image, AppName: PhotoSuite III Executable

ProgramID: PaintShopPro8.Image, FileType: Paint Shop Pro Image, AppName: Paint Shop Pro 8
EXEFile: Paint Shop Pro.exe

ProgramID: PEX7.Image, AppName: Ulead Photo Explorer
EXEFile: PEX.EXE

ProgramID: PhotoPhilia.File_ras, FileType: RAS Image, AppName: PhotoPhilia main application
EXEFile: Pholi.exe

ProgramID: PSP.Image, FileType: Paint Shop Pro Image, AppName: Paint Shop Pro Windows 32 bit Executable

ProgramID: PSP5.Image, FileType: Paint Shop Pro 5 Image, AppName: Paint Shop Pro 5 Release Executable
EXEFile: PSP.EXE

ProgramID: PSP7.Image, FileType: Paint Shop Pro 7 Image, AppName: Paint Shop Pro 7
EXEFile: psp.exe

ProgramID: PV1.Image, AppName: Ulead Instant Viewer

ProgramID: rasfile, FileType: Sun Raster

ProgramID: SlowView RAS, AppName: SlowView
EXEFile: SlowView.exe

ProgramID: WebImage, FileType: WebImage Editor Image, AppName: WebImage for Windows

ProgramID: ACDSee 6.0.ras
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\6.0\ACDSee6.exe %1

ProgramID: ACDSee 7.0.ras
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\7.0\ACDSee7.exe %1

ProgramID: ACDSee.ras
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\5.0\ACDSee5.exe %1

ProgramID: ACDSee.RAS
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\ACDSee.exe /dde

ProgramID: ACDSee.RAS
EXEFile: %ProgramFiles%\ACDSYS~1\ACDSEE\ACDSEE.EXE /dde

ProgramID: ACDSee.RAS
EXEFile: %ProgramFiles%\HEWLET~1\PHOTOS~1\ACDSys\ACD\ACDSee\ACDSee.exe /dde

ProgramID: ACDSee6.ras
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\6.0\ACDSee6.exe %1

ProgramID: PaintShopPro8.Image
EXEFile: %ProgramFiles%\Jasc Software Inc\Paint Shop Pro 8\Paint Shop Pro.exe /dde

ProgramID: PaintShopPro9.Image
EXEFile: %ProgramFiles%\Jasc Software Inc\Paint Shop Pro 9\Paint Shop Pro 9.exe /dde

ProgramID: PEX7.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 7.0\Pex.exe %1

ProgramID: PictPub.Image.7
EXEFile: %ProgramFiles%\MICROG~1\PICTUR~1\Pp70.exe %1

ProgramID: PictPub.Image.7
EXEFile: F:\graphics\MICROG~1\PICTUR~1\Pp70.exe %1

ProgramID: PSP.Image
EXEFile: %ProgramFiles%\PAINTS~1\PSP.EXE /dde

ProgramID: PSP5.Image
EXEFile: %ProgramFiles%\PAINTS~1\Psp.exe /dde

ProgramID: PSP5.Image
EXEFile: F:\PAINT~14\Psp.exe /dde

ProgramID: PSP7.Image
EXEFile: %ProgramFiles%\Jasc Software Inc\Paint Shop Pro 7\psp.exe /dde

ProgramID: PSP7.Image
EXEFile: %ProgramFiles%\Paint Shop Pro 7\psp.exe /dde

ProgramID: PV1.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 7.0\eViewer.exe %1

ProgramID: PV8.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.0

ProgramID: TheGIMP20
EXEFile: %ProgramFiles%\GIMP-2.2\bin\gimp-win-remote.exe %1

ProgramID: WinPress
EXEFile: C:\arcgis\arcexe9x\bin\WinPress.exe %1

ProgramID: FotoCanvas2.RAS
EXEFile: %ProgramFiles%\ACD Systems\FotoCanvas\2.0\FotoCanvas2.exe /dde

ProgramID: PhotoMag.Image.4
EXEFile: %ProgramFiles%\Micrografx\Photo Magic\Magic40.exe %1

ProgramID: View Station Document
EXEFile: C:\View\Station\Image.exe %1

ProgramID: PV8.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.0 SE Basic\eViewer.exe %1

ProgramID: TheGIMP13
EXEFile: C:\GIMP-1.3\bin\gimp-1.3.exe %1

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

ProgramID: EZPhotoTools2.Document
EXEFile: %ProgramFiles%\BestOn\EZPhoto Tools 2.1\EZPhotoTools2.exe %1

ProgramID: ACDSee 7.0.ras
EXEFile: %SystemRoot%\Program Files\ACD Systems\ACDSee\7.0\ACDSee7.exe %1

ProgramID: PictPub.Image.10
EXEFile: %ProgramFiles%\Micrografx\Picture Publisher 10\Pp10.exe %1

ProgramID: PSP6.Image
EXEFile: %ProgramFiles%\PAINTS~1\psp.exe /dde

ProgramID: MGIPS4_RAS
EXEFile: %ProgramFiles%\MGI\MGI PhotoSuite 4\PhotoSuite.exe %1

ProgramID: MGIPS4_RAS
EXEFile: d:\setup\PSViewer.exe %1

ProgramID: ACDSee.RAS
EXEFile: %ProgramFiles%\ACDSYS~1\ACDSEE~1\ACDSEE.EXE /dde

ProgramID: ACDSee 8.0.ras
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\8.0\ACDSee8.exe %1

ProgramID: PV85.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.5 SE\eViewer.exe %1

ProgramID: SnagIt.7.Picture
EXEFile: %ProgramFiles%\TechSmith\SnagIt 7\SnagIt32.exe %1

ProgramID: MGIPSIII_RAS
EXEFile: %ProgramFiles%\MGI\MGI PhotoSuite III SE\PhotoSuite.exe %1

ProgramID: PictPub.Image.10
EXEFile: %ProgramFiles%\Corel\CORELD~1\PHOTOB~1\Pp10.exe %1

ProgramID: TheGIMP20
EXEFile: %ProgramFiles%\GIMP-2.0\bin\gimp-win-remote.exe gimp-2.2.exe %1

ProgramID: Visual Photo++ file
EXEFile: %ProgramFiles%\Visual Photo++\VPhoto.exe %1

ProgramID: PaintShopProX.Image
EXEFile: %ProgramFiles%\Corel\Corel Paint Shop Pro X\Paint Shop Pro X.exe

ProgramID: IrfanView.ras
EXEFile: %ProgramFiles%\IrfanView\i_view32.exe

ProgramID: ACDSee Pro.ras
EXEFile: %ProgramFiles%\ACD Systems\ACDSee\8.0.Pro\ACDSee8Pro.exe

ProgramID: SavedDsQuery
EXEFile: rundll32 %SystemRoot%\system32\dsquery.dll,OpenSavedDsQuery

ProgramID: PictPub.Image.8
EXEFile: %ProgramFiles%\MICROG~1\PICTUR~1\pp80.exe

ProgramID: PictPub.Image.10
EXEFile: %ProgramFiles%\PHOTOB~1\Pp10.exe

ProgramID: NeroPhotoSnapViewer.Files.ras
EXEFile: %ProgramFiles%\Ahead\Nero PhotoSnap\PhotoSnapViewer.exe

ProgramID: PV85.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.6\eViewer.exe

ProgramID: PEX85.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.5 SE Basic\PEX.exe

ProgramID: ImageView.Document.ras
EXEFile: %ProgramFiles%\EAI\VISPRO~1\Products\VISVIE~1\VisView.exe

ProgramID: PaintShopProPhotoXI.Image
EXEFile: %ProgramFiles%\Corel\Corel Paint Shop Pro Photo XI\Corel Paint Shop Pro Photo.exe

ProgramID: SnapfireI.Image
EXEFile: %ProgramFiles%\Corel\Corel Snapfire Plus\Corel Snapfire.exe

ProgramID: Serif.PhotoPlus
EXEFile: %ProgramFiles%\Serif\PhotoP70\Program\PHOTOP~1.EXE

ProgramID: PV8.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.0\eViewer.exe

ProgramID: IrfanView.ras
EXEFile: %ProgramFiles%\IRFANV~1\i_view32.exe

ProgramID: RetroAS1Editor.Document
EXEFile: %ProgramFiles%\BitHeadz\Retro AS-1\Retro AS-1 Editor.exe

ProgramID: ACDSee.RAS
EXEFile: %ProgramFiles%\ACD\ACDSee\ACDSee.exe

ProgramID: Pagis.Image
EXEFile: %ProgramFiles%\ScanSoft\Pagis\XIFVIEW.EXE

ProgramID: ALSee.RAS
EXEFile: %ProgramFiles%\ESTsoft\ALSee\ALSee.exe

ProgramID: Firegraphic.FiregraphicXP.ras
EXEFile: %ProgramFiles%\Firegraphic\Firegraphic XP\FiregraphicXP.exe

ProgramID: PV85.Image
EXEFile: %ProgramFiles%\Ulead Systems\Ulead Photo Explorer 8.5\eViewer.exe

ProgramID: Pagis.Image
EXEFile: %ProgramFiles%\Xerox\Pagis\XIFVIEW.EXE

ProgramID: pcA.RAPSDataFile
EXEFile: %ProgramFiles%\Symantec\pcAnywhere\RAPS.exe

ProgramID: application/cals-1840
EXEFile: %ProgramFiles%\SwiftView\sview.exe

ProgramID: NeroPhotoSnapViewer.Files.ras
EXEFile: %ProgramFiles%\Ahead\Nero\Nero 7\Nero PhotoSnap\PhotoSnapViewer.exe

ProgramID: DigitalFotoMaker.5.ras
EXEFile: %ProgramFiles%\MAGIX\FOTO_M~1\FOTOMA~1.EXE

ProgramID: MyViewPad.ras
EXEFile: %ProgramFiles%\My ViewPad\MyViewPad.exe

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a ras black and white image is a special file format by XnSoft and should only be edited and saved with the appropriate software.

How to solve problems with RAS files

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