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Supported File Formats

OfficeDocs supports a wide range of file formats for viewing and editing. This guide outlines the main supported formats, how legacy files are handled, and which formats are not currently supported.

Document formats

OfficeDocs supports the following document formats:

  • .docx: Microsoft Word document
  • .doc: Legacy Microsoft Word format, converted to .docx for editing
  • .odt: OpenDocument text file
  • .rtf: Rich Text Format
  • .txt: Plain text file
  • .docxf: OnlyOffice form document

Spreadsheet formats

Supported spreadsheet formats include:

  • .xlsx: Microsoft Excel workbook
  • .xls: Legacy Microsoft Excel format, converted to .xlsx for editing
  • .ods: OpenDocument spreadsheet
  • .csv: Comma-separated values file

Presentation formats

Supported presentation formats include:

  • .pptx: Microsoft PowerPoint presentation
  • .ppt: Legacy PowerPoint format, converted to .pptx for editing
  • .odp: OpenDocument presentation

PDF formats

OfficeDocs also supports:

  • .pdf: PDF document for viewing, annotation, and form filling

Format conversion

When downloading files, OfficeDocs can convert them into other supported formats.

Examples:

  • Documents can be downloaded as .docx, .pdf, .odt, .rtf, or .txt
  • Spreadsheets can be downloaded as .xlsx, .pdf, .ods, or .csv

  • Presentations can be downloaded as .pptx, .pdf, or .odp

Legacy format support

Legacy Microsoft Office formats such as .doc , .xls , and .ppt are automatically converted to modern formats for editing. This allows changes to be saved in a more current and compatible file type.

Unsupported formats

The following formats are not currently supported:

  • Apple iWork formats such as .pages , .numbers , and .keynote
  • Native Google Docs formats
  • Specialized proprietary formats such as Microsoft Visio or Publisher files