How to convert .doc Word files to .docx format?
Older Word documents in the .doc format may need to be converted to .docx for compatibility with modern versions of Microsoft Word. Instead of manually recreating documents, you can quickly convert them using built-in Word features or the Kutools for Word add-in. This guide will show you both methods.
Convert a .doc file to .docx using the Save As feature
Batch convert multiple .doc files to .docx with Kutools for Word
Recommended Productivity Tools for Word
Kutools for Word: Integrating AI π€, over 100 advanced features save 50% of your document handling time.Free Download
Office Tab: Introduces the browser-like tabs to Word (and other Office tools), simplifying multi-document navigation.Free Download
Convert a .doc file to .docx using the Save As feature
- In Word 2010/2013, click File > Save As. In Word 2007, click the Office button > Save As.
- In the Save As dialog, choose Word Document (*.docx) as the file type and click Save.
Your document is now converted to the .docx format.
Office Tab: Brings tabbed interfaces to Word, Excel, PowerPoint...![]() |
Enhance your workflow now. Learn More about Office Tab Free Download |
Batch convert multiple .doc files to .docx with Kutools for Word
If you have Kutools for Word installed, the Doc/Docx utility allows you to convert multiple .doc files to .docx in just a few clicks.
- Click Kutools Plus > Doc/Docx.
- In the Document Format Converter window, follow these steps:
- Select Doc to Docx from the Format Convert drop-down menu.
- Click
to add documents:
- Choose Files to add individual documents.
- Choose Folder to add all documents from a specific folder.
- By default, the converted files will be saved to the same location as the source files. To change the location, click the Browse button
and choose a new destination.
- Optionally, check the Delete source files after conversion box to remove the original files after the .docx files are created.
- Optionally, check the Keep the modified date of original files box to retain the original file metadata.
- Once all settings are complete, click Ok.
Note: The Doc/Docx function supports multiple file conversions, allowing you to convert a .doc file to .docx, a .docx file to .doc, and a .docx file to .pdf. For more details on Doc/Docx conversion, please visit our Doc/Docx conversion page.
Related articles:
Best Office Productivity Tools
Kutools for Word - Elevate Your Word Experience with Over 100 Remarkable Features!
π€ Kutools AI Features: AI Assistant / Real-Time Assistant / Super Polish (Preserve Format) / Super Translate (Preserve Format) / AI Redaction / AI Proofread...
π Document Mastery: Split Pages / Merge Documents / Export Selection in Various Formats (PDF/TXT/DOC/HTML...) / Batch Convert to PDF...
β Contents Editing: Batch Find and Replace across Multiple Files / Resize All Pictures / Transpose Table Rows and Columns / Convert Table to Text...
π§Ή Effortless Clean: Sweap away Extra Spaces / Section Breaks / Text Boxes / Hyperlinks / For more removing tools, head to the Remove group...
β Creative Inserts: Insert Thousand Separators / Check Boxes / Radio Buttons / QR Code / Barcode / Multiple Pictures / Discover more in the Insert group...
π Precision Selections: Pinpoint Specific Pages / Tables / Shapes / Heading Paragraphs / Enhance navigation with more Select features...
β Star Enhancements: Navigate to Any Location / Auto-Insert Repetitive Text / Toggle Between Document Windows / 11 Conversion Tools...
π Supports 40+ Languages: Use Kutools in your preferred language β supports English, Spanish, German, French, Chinese, and 40+ others!

Best Office Productivity Tools
Kutools for Word - 100+ Tools for Word
- π€ Kutools AI Features: AI Assistant / Real-Time Assistant / Super Polish / Super Translate / AI Redaction / AI Proofread
- π Document Mastery: Split Pages / Merge Documents / Batch Convert to PDF
- β Contents Editing: Batch Find and Replace / Resize All Pictures
- π§Ή Effortless Clean: Remove Extra Spaces / Remove Section Breaks
- β Creative Inserts: Insert Thousand Separators / Insert Check Boxes / Create QR Codes
- π Supports 40+ Languages: Kutools speaks your language β 40+ languages supported!