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Document format

.doc

Microsoft Word Document (Legacy)

DOC is the legacy binary format used by Microsoft Word before 2007. While still widely encountered, it has been superseded by DOCX. Many older documents and templates still use this format.

MIME type

application/msword

Developer

Microsoft

Introduced

1983

Advantages

  • Universal recognition
  • Compatible with older Word versions
  • Still supported by all major office suites
  • Extensive installed base of existing documents

Limitations

  • Larger file sizes than DOCX
  • Binary format — harder to recover if corrupted
  • Limited to older feature set
  • Being phased out in favor of DOCX

When to use DOC

Opening legacy documents
Compatibility with older systems
Template archives
Government and institutional legacy files

Technical details

DOC uses the Microsoft Compound Binary File Format (OLE2). It stores text, formatting, images, and embedded objects in a binary stream structure.

Convert DOC to other formats

12 conversion options available

DOC to PDFDOC to DOCXDOC to TXTDOC to XLSXDOC to XLSDOC to CSVDOC to PPTXDOC to PPTDOC to ODTDOC to RTFDOC to HTMLDOC to EPUB

Convert to DOC from other formats

12 formats can be converted to DOC

PDF to DOCDOCX to DOCTXT to DOCXLSX to DOCXLS to DOCCSV to DOCPPTX to DOCPPT to DOCODT to DOCRTF to DOCHTML to DOCEPUB to DOC

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Other document formats

.pdfPDF

Portable Document Format

.docxDOCX

Office Open XML Document

.txtTXT

Plain Text File

.xlsxXLSX

Office Open XML Spreadsheet

.xlsXLS

Microsoft Excel Spreadsheet (Legacy)

.csvCSV

Comma-Separated Values

.pptxPPTX

Office Open XML Presentation

.pptPPT

Microsoft PowerPoint Presentation (Legacy)

.odtODT

Open Document Text

.rtfRTF

Rich Text Format

.htmlHTML

HyperText Markup Language

.epubEPUB

Electronic Publication