Free Online Document Assembly

Generate meaningful documents from template files, and many other supported file formats.


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Table Index
Data Source Name

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GroupDocs.Assembly App

GroupDocs.Assembly App Supported Document Formats

Microsoft Office Formats
  • Word: DOC, DOCX, DOT, DOTX, DOTM, DOCM, RTF, WordprocessingML (XML)
  • Excel: XLS, XLSX, XLSM, XLSB, XLT, XLTM, XLTX, SpreadsheetML (XML)
  • PowerPoint: PPT, PPTX, PPTM, PPS, PPSX, PPSM, POTX, POTM
  • Outlook: EML, EMLX, MSG
Supported Data Sources
  • Spreadsheet as Table of Data
  • Word Processing Table as Table of Data
Other Formats
  • OpenOffice Document Formats: ODT, OTT, ODS, ODP
  • Email: MHT, MHTML
  • Web: HTML
  • Other : TXT
Inter-Format Assembly Support
  • Word Processing TO Word Processing, HTML, PDF, XPS, TIFF, MHTML, TXT, XAML, OpenXPS, EPUB, SVG, PS, PCL
  • Spreadsheet TO Spreadsheet, HTML, PDF, XPS, TIFF, MHTML
  • Presentation TO Presentation, HTML, PDF, XPS, TIFF
  • Email TO Word Processing, Email, HTML, PDF, XPS, TIFF, MHTML, TXT, XAML, OpenXPS, EPUB, SVG, PS, PCL
  • HTML & TXT TO Word Processing, HTML, PDF, XPS, TIFF, MHTML, TXT, XAML, OpenXPS, EPUB, SVG, PS, PCL
How to

 How to assemble a file using GroupDocs.Assembly App

  • Click inside the file drop area to upload a template file or drag & drop a template file.
  • Click Upload Template to start uploading.
  • Click inside the file drop area to upload a data-source file or drag & drop it.
  • Choose the appropriate Table Index and Data Source Name options.
    1. Table Index is the zero-based serial number of the table that exist in the data-source file. For example, if you have a spreadsheet file as data-source file then its first sheet is at zero index.
    2. Data Source Name is that name of data-source table which is used to refer inside your template file.
  • In the next step, you can download your assembled file.

Fast and Easy Assembly

Upload your template and data-source files, choose the appropriate options and click on “ASSEMBLE NOW” button. You will get the output file as soon as the files are assembled.

Assemble from Anywhere

It works from all platforms including Windows, Mac, Android and iOS. All files are processed on our servers. No plugin or software installation required for you.

Assembly Quality

Powered by GroupDocs.Assembly. All files are processed using GroupDocs APIs.