Free Online CS Viewer

View CS documents online from any device, with a modern browser like Chrome, Opera and Firefox.

GroupDocs.Viewer App

GroupDocs.Viewer App Supported Document Formats

Microsoft Office, Visio & Project
  • Word: DOC, DOCX, DOT, DOTX, DOCM, DOTM, RTF
  • Excel: XLS, XLSX, XLSM, XLSB, XLTM, XLTX
  • PowerPoint: PPT, PPTX, PPS, POTM, POTX, PPSX, PPSM, PPTM
  • Visio: VSD, VDX, VSS, VSSX, VSX, VST, VSTX, VTX, VSDX, VDW, VSDM, VSSM, VSTM
  • Project: MPP, MPT
  • Outlook: MSG, EML, EMLX
  • Outlook Data Files: PST, OST
  • OneNote: ONE
OpenDocument & Other Formats
  • OpenDocument Formats: ODT, OTT, ODS, ODP, OTP, OTS
  • Adobe & Fixed Layout: PSD, PDF, XPS
  • Images: BMP, GIF, JPG, PNG, TIFF, multi-page TIFF, WebP, DNG
  • Jpeg2000: JP2, J2C, J2K, JPF, JPX, JPM
  • AutoCAD Drawings: DXF, DWG, IFC, STL
  • Metafiles: EMF, WMF
  • Web: HTML, MHT, MHTML
  • Text: TXT, CSV
  • Other: SVG, DjVu, DICOM, MOBI, ICO, EPUB, XML, TEX, PS, EPS, DWF, ISFF-based DGN, CGM

Discover GroupDocs.Viewer free online app!

How to

How to view CS files online using GroupDocs.Viewer App

  • Select or drop your CS file to view.
  • Once upload completes, you'll be redirected to the viewer application.
  • Scroll down use menu to navigate between pages.
  • Zoom-in or zoom-out page view.
  • Download source file pages in PNG or PDF format.

Powered By

 GroupDocs.Viewer for .NET API

Powerful document viewer .NET library & API.
Build your own multi-platform document and file viewer with our .NET library.

More Platforms

 GroupDocs.Viewer for Java

Java version of GroupDocs.Viewer library & API.
Build your Java document viewer application with our Java library.

 GroupDocs.Viewer Cloud

Easy to use cross-platform Cloud solution.
Or use our Cloud API to build your document and file viewer.

Open-Source UI/UX Solutions

 GroupDocs.Viewer for .NET and Java

Integrate document viewer in your apps using our out-of-the-box open-source front-end solutions based on Angular and GroupDocs.Viewer for .NET/Java.
UI/UX solutions can be run as standalone application or can be integrated in any .NET/Java application, download and build your viewer solution within few clicks!

 GroupDocs.Total for .NET and Java

GroupDocs.Total is an open-source UI/UX solution where all GroupDocs products are working together as one.
GroupDocs.Total provides multiple high quality features against over 120 document formats, such as conversion, signature, parser and much more!

Other Viewer file formats

You can also view many other file formats. Please see the complete list below.

ZIP VIEWER (Zipped File)
RAR VIEWER (Rar Compressed File)
TAR VIEWER (Consolidated Unix File Archive)
BZ2 VIEWER (Bzip2 Compressed File)
GZ VIEWER (Gnu Zipped File)
GZIP VIEWER (Gnu Zipped File)
DXF VIEWER (Drawing Exchange Format File)
DWG VIEWER (AutoCAD Drawing Database File)
STL VIEWER (Stereolithography File)
IFC VIEWER (Industry Foundation Classes File)
CF2 VIEWER (Common File Format File)
PLT VIEWER (PLT (HPGL))
OBJ VIEWER (Wavefront 3D Object File)
IGS VIEWER (Initial Graphics Exchange Specification (IGES))
HPG VIEWER (PLT (HPGL))
DWF VIEWER (Design Web Format File)
DGN VIEWER (MicroStation Design File)
DWT VIEWER (AutoCAD Drawing Template)
VSD VIEWER (Visio Drawing File)
VSDX VIEWER (Visio Drawing)
VSS VIEWER (Visio Stencil File)
VSSX VIEWER (Visio Stencil File)
VSDM VIEWER (Visio Macro-Enabled Drawing)
VST VIEWER (Visio Drawing Template)
VSTX VIEWER (Visio Drawing Template)
VSTM VIEWER (Visio Macro-Enabled Drawing Template)
VSSM VIEWER (Visio Macro-Enabled Stencil File)
VSX VIEWER (Visio Stencil XML File)
VTX VIEWER (Visio Template XML File)
VDW VIEWER (Visio Web Drawing)
VDX VIEWER (Visio Drawing XML File)
EPUB VIEWER (Open eBook File)
MOBI VIEWER (Mobipocket eBook)
MSG VIEWER (Outlook Mail Message)
EML VIEWER (E-Mail Message)
EMLX VIEWER (Apple Mail Message)
NSF VIEWER (Lotus Notes Database)
PST VIEWER (Outlook Personal Information Store File)
OST VIEWER (Outlook Offline Data File)
TIF VIEWER (Tagged Image File)
TIFF VIEWER (Tagged Image File Format)
JPG VIEWER (JPEG Image)
JPEG VIEWER (JPEG Image)
PNG VIEWER (Portable Network Graphic)
GIF VIEWER (Graphical Interchange Format File)
BMP VIEWER (Bitmap Image File)
ICO VIEWER (Icon File)
JP2 VIEWER (JPEG 2000 Core Image File)
JPF VIEWER (JPEG 2000 Image File)
JPX VIEWER (JPEG 2000 Image File)
JPM VIEWER (JPEG 2000 Image File)
J2C VIEWER (JPEG 2000 Code Stream)
J2K VIEWER (JPEG 2000 Code Stream)
JPC VIEWER (JPEG 2000 Code Stream)
DIB VIEWER (Device Independent Bitmap File)
WMF VIEWER (Windows Metafile)
WMZ VIEWER (Windows Metafile Compressed)
EMF VIEWER (Enhanced Windows Metafile)
EMZ VIEWER (Enhanced Windows Metafile Compressed)
WEBP VIEWER (WebP Image)
DNG VIEWER (Digital Negative Specification)
CDR VIEWER (CorelDraw Vector Graphic Drawing)
CMX VIEWER (Corel Metafile Exchange Image File)
DJVU VIEWER (DjVu Image)
CGM VIEWER (Computer Graphics Metafile)
PCL VIEWER (Printer Command Language Document)
PSD VIEWER (Adobe Photoshop Document)
PSB VIEWER (Adobe Photoshop Large Document Format)
DCM VIEWER (DICOM Image)
PS VIEWER (PostScript File)
EPS VIEWER (Encapsulated PostScript File)
ODG VIEWER (OpenDocument Graphic File)
FODG VIEWER (OpenDocument Graphic File)
SVG VIEWER (Scalable Vector Graphics File)
SVGZ VIEWER (Compressed Scalable Vector Graphics File)
HTM VIEWER (Hypertext Markup Language File)
HTML VIEWER (Hypertext Markup Language File)
MHT VIEWER (MHTML Web Archive)
MHTML VIEWER (MIME HTML File)
XML VIEWER (XML File)
XML VIEWER (Excel 2003 XML (SpreadsheetML))
ONE VIEWER (OneNote Document)
PDF VIEWER (Portable Document Format File)
XPS VIEWER (XML Paper Specification File)
OXPS VIEWER (XML Paper Specification File)
TEX VIEWER (LaTeX Source Document)
PPT VIEWER (PowerPoint Presentation)
PPTX VIEWER (PowerPoint Open XML Presentation)
PPS VIEWER (PowerPoint Slide Show)
PPSX VIEWER (PowerPoint Open XML Slide Show)
FODP VIEWER (OpenDocument Flat XML Presentation)
ODP VIEWER (OpenDocument Presentation)
POT VIEWER (PowerPoint Template)
PPTM VIEWER (PowerPoint Open XML Macro-Enabled Presentation)
POTX VIEWER (PowerPoint Open XML Presentation Template)
POTM VIEWER (PowerPoint Open XML Macro-Enabled Presentation Template)
PPSM VIEWER (PowerPoint Open XML Macro-Enabled Slide)
OTP VIEWER (OpenDocument Presentation Template)
XLS VIEWER (Excel Spreadsheet)
XLT VIEWER (Microsoft Excel Template)
XLTX VIEWER (Excel Open XML Spreadsheet Template)
XLSX VIEWER (Microsoft Excel Open XML Spreadsheet)
XLSM VIEWER (Excel Open XML Macro-Enabled Spreadsheet)
XLSB VIEWER (Excel Binary Spreadsheet)
XLAM VIEWER (Microsoft Excel Add-in)
XLTM VIEWER (Microsoft Excel Macro-Enabled Template)
CSV VIEWER (Comma Separated Values File)
TSV VIEWER (Tab Separated Values File)
ODS VIEWER (OpenDocument Spreadsheet)
OTS VIEWER (OpenDocument Spreadsheet Template)
MPP VIEWER (Microsoft Project File)
MPT VIEWER (Microsoft Project Template)
AS VIEWER (ActionScript File)
AS3 VIEWER (ActionScript File)
ASM VIEWER (Assembly Language Source Code File)
BAT VIEWER (DOS Batch File)
C VIEWER (C/C++ Source Code File)
CC VIEWER (C++ Source Code File)
CMAKE VIEWER (CMake File)
CPP VIEWER (C++ Source Code File)
VB VIEWER (Visual Basic Project Item File)
CSS VIEWER (Cascading Style Sheet)
CXX VIEWER (C++ Source Code File)
DIFF VIEWER (Patch File)
ERB VIEWER (Ruby ERB Script)
GROOVY VIEWER (Groovy Source Code File)
H VIEWER (C/C++/Objective-C Header File)
HAML VIEWER (Haml Source Code File)
HH VIEWER (C++ Header File)
JAVA VIEWER (Java Source Code File)
JS VIEWER (JavaScript File)
JSON VIEWER (JavaScript Object Notation File)
LESS VIEWER (LESS Style Sheet)
LOG VIEWER (Log File)
M VIEWER (Objective-C Implementation File)
MAKE VIEWER (Xcode Makefile Script)
MD VIEWER (Markdown Documentation File)
ML VIEWER (ML Source Code File)
MM VIEWER (Objective-C++ Source File)
PHP VIEWER (PHP Source Code File)
PL VIEWER (Perl Script)
PROPERTIES VIEWER (Java Properties File)
PY VIEWER (Python Script)
RB VIEWER (Ruby Source Code)
RST VIEWER (reStructuredText File)
SASS VIEWER (Syntactically Awesome StyleSheets File)
SCALA VIEWER (Scala Source Code File)
SCM VIEWER (Scheme Source Code File)
SCRIPT VIEWER (Generic Script File)
SH VIEWER (Bash Shell Script)
SML VIEWER (Standard ML Source Code File)
SQL VIEWER (Structured Query Language Data File)
VIM VIEWER (Vim Settings File)
YAML VIEWER (YAML Document)
DOC VIEWER (Microsoft Word Document)
DOCX VIEWER (Microsoft Word Open XML Document)
DOCM VIEWER (Word Open XML Macro-Enabled Document)
DOT VIEWER (Word Document Template)
DOTX VIEWER (Word Open XML Document Template)
DOTM VIEWER (Word Open XML Macro-Enabled Document Template)
RTF VIEWER (Rich Text Format File)
TXT VIEWER (Plain Text File)
ODT VIEWER (OpenDocument Text Document)
OTT VIEWER (OpenDocument Document Template)
VCF VIEWER (vCard File)
MPX VIEWER (Microsoft Project Exchange File)
FODS VIEWER (OpenDocument Flat XML Spreadsheet)
SXC VIEWER (StarOffice Calc Spreadsheet)
NUMBERS VIEWER (Apple numbers)
OTG VIEWER (OpenDocument Graphic Template)