.DOC File Extension
Microsoft Word Document (Legacy)
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What is a DOC file?
A DOC file is a word processing document created by Microsoft Word or exported by another word processing program, such as OpenOffice Writer or Apple Pages. It may contain formatted text, images, tables, graphs, charts, page formatting, and print settings.
DOC files are created to save various documents, including letters, resumes, essays, and invitations. When you create a document in Word, you can choose to save it in the DOC file format. The program then creates a DOC file to store the document's contents, which can be closed and opened again for further editing. When you are done editing your DOC file you can print it or save it as another file, such as a .PDF or .DOT document.
The DOC file was designated as Microsoft Word's primary format in 1983. Word used the same format until Word 97 when Microsoft released an updated version of the binary format. In 2006, Microsoft replaced the updated DOC file format with the .DOCX file format when it released Word 2007. DOCX files store documents in the Open XML format.
NOTE: Word is the most popular word processing application in the world. It comes with every edition of the Microsoft Office suite and is used in home, academic, and business environments.
Common DOC Filenames
Document1.doc - The default filename that Microsoft Word gives to new documents prior to Word 2007 (Word 2007 and later uses Document1.docx by default).
How to open a DOC file
You can open DOC files with Microsoft Word in Windows and macOS. Word is the best application for opening DOC files because it fully supports the formatting of Word documents, which includes text spacing and alignment, images, charts, and tables. The word processor is also available for Android and iOS devices.
You can also open DOC files with other word processors, but some of the formatting of the original documents may be altered or lost. Some word processors that support DOC files include Corel WordPerfect (Windows), Apple Pages (Mac), and Apache OpenOffice Writer (multiplatform).
You can also open DOC files with various web programs. Google Docs is a free web application that allows you to upload a DOC file and view, edit, save, and convert the document.
How to convert a DOC file
Various word processing applications, including Microsoft Word, Corel Wordperfect, and OpenOffice Writer, can convert DOC files to other formats.
For example, in the Windows and Mac versions of Microsoft Word, select File → Save As to convert DOC files to one of the following formats: