For most of its long history, Microsoft Word has used a proprietary format for its saved files, DOC. Starting in 2007 with the updated version of Word (and Microsoft Office), the default save format was changed to DOCX. ... Both are relatively open, but DOCX is more efficient and creates smaller, less corruptable files
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For most of its long history, Microsoft Word has used a proprietary format for its saved files, DOC. Starting in 2007 with the updated version of Word (and Microsoft Office), the default save format was changed to DOCX. ... Both are relatively open, but DOCX is more efficient and creates smaller, less corruptable files