How to Batch Convert Multiple Word Documents from DOC to DOCX
Question details
The user needs a fast and efficient method to bulk convert approximately 1,500 legacy .doc Word documents into the modern .docx format.

- Product
- Word
- Device & OS
- not provided
- Scenario
- Updating a large archive of older Word documents to the current XML-based format standard.
- Observed behavior
- Manually opening each file and saving it individually through Compatibility Mode is too tedious and time-consuming for large batches.
Before initiating any bulk conversion, meticulously back up all of your original .doc files into a completely separate local folder or external drive, as batch processing can occasionally alter complex formatting.
Use a Dedicated Batch Conversion Utility
Using a trusted third-party batch conversion tool is the most efficient and user-friendly way to convert thousands of files at once.
There are several trusted document conversion utilities available online designed specifically to handle massive batches of Word files. These tools automate the 'Save As' process in the background, saving you hours of manual work.
Gather all your 1,500 .doc files into a single master 'Input' folder. Create an empty 'Output' folder where the new files will be saved.
Acquire and install a trusted batch document converter software compatible with your operating system.
Open the utility, select your 'Input' folder as the source directory, and choose the 'Output' folder as the destination. Set the target conversion format to '.docx'.
Select just 5-10 files and run the conversion. Open the newly created .docx files to verify that the text and formatting converted correctly.
Once you are satisfied with the test sample, run the utility on the entire folder to complete the batch conversion.
Run a VBA Macro in Microsoft Word
If you prefer not to install third-party software, you can use a custom VBA macro script within Word to loop through a folder and save files as .docx.
Manage and Convert Word Documents Seamlessly with WPS Office
Whether you are dealing with legacy .doc files or modern .docx documents, WPS Office provides robust compatibility, allowing you to open, edit, and save seamlessly without losing your formatting.
- 1. Launch WPS Writer: Open the WPS Office suite and start the Writer application.
- 2. Open your legacy file: Click 'Menu' > 'Open' and select your older .doc document.
- 3. Save in modern format: Go to 'Menu' > 'Save As' and select 'Microsoft Word Document (*.docx)' from the file type dropdown menu.

Frequently Asked Questions
Will I lose my formatting when converting from .doc to .docx?
While standard text, fonts, and basic layouts convert seamlessly, some complex legacy formatting, older macros, or outdated embedded objects might shift. This is why it is highly recommended to review a sample of your documents after running a bulk conversion.
Can I use OneDrive or Google Drive as a backup before bulk converting?
It is not recommended to use sync clients as your primary backup for bulk operations. If the bulk conversion overwrites your original files and introduces errors, those corrupted files will sync to the cloud automatically. Always copy your files to a distinct, non-synced local folder first.
Why should I convert my older .doc files to .docx?
The newer .docx format is based on XML, which makes file sizes significantly smaller and dramatically reduces the risk of file corruption. It also offers better compatibility with modern web viewers, mobile apps, and advanced document features.




