Supported file formats

Microsoft Office formats

• Word: DOCX, DOC, DOCM, DOT, DOTX, DOTM, RTF, WordprocessingML
• Excel: XLSX, XLS, XLSM, XLSB, XLTM, XLT, XLTM, XLTX, SpreadsheetML
• PowerPoint: PPT, PPTX, PPTM, PPS, PPSX, PPSM, POTM, POTX

Images & Other Formats

• Portable: PDF
• Images: SVG, TIFF
• Other office formats: ODT, OTT, OTS, ODS, ODP, OTP

Other formats

• Web: HTML, MHTML
• Emails: EML, MSG, EMLX
• Other: EPUB, MD

GroupDocs.Assembly Features
Create documents and reports using advanced data models.

• Advanced Data Representation - Supports a wide range of data objects such as charts, lists, tables, images, and more.
• Data Manipulation - Apply formulas and sequential operations to format and display data effectively.
• Wide Range of Supported Formats - Work seamlessly with all common document formats for templates or output files.
• Rich Template Markup - Leverage ordinal, cardinal, and alphabetic numeric formatting in templates.
• Embed Barcodes - Generate barcode images dynamically and insert them into your documents.
• Data Formatting - Format strings in templates as uppercase, lowercase, capitalized, or first-letter capital styles.
• Document Content Manipulation - Dynamically insert content from external documents into your reports.
• Save in Multiple Formats - Specify the output file format using file extensions or detailed configurations.
• Flexible Data Processing - Insert images and documents dynamically using Base64-encoded bytes.