.DOCX is the default saved file format for Microsoft Office 2007 and later. A .docx file cannot be opened without installing Microsoft Office Word 2013/2010/2007 and will not be opened without the help of Microsoft Office Compatibility Pack for Word if one uses Word 2003 or earlier version Word. Then how to open .Docx file without MS Office Word 2013/2010/2007/2003 in Windows 10/8/7/Vista/XP?
This article introduces how you can open a .Docx file without MS Office Word 2013/2010/2007 in Windows 10/8/7/Vista/XP, and how you can a .Docx file with Word 2003 and earlier version Word.
- If you are using Word 2003 under Windows 7, Windows Vista or Windows XP, download free Microsoft Office Compatibility Pack for Word, then you can open a .Docx file in Word 2003.
- If you are using Word 2003 under Windows 8 or Windows 10, you will have to upgrade Word 2003 to newer version or following refer to the following methods to open a .Docx file.
- If you won’t install Word 2003 or newer version Word 2013/2010/2007, refer to the following methods to open .Docx files.
Methods to Open .Docx file without MS Office Word 2013/2010/2007 in Windows 10/8/7/Vista/XP
Method 1: Using Google Docs
This Method does not require to install any software and is free for individuals but has fees for business starting at $5/month. To use Google Docs to open .Docx file, you will need to have a Google account(Creating a new account is free). Simple go to Google Docs and sign it your account. Click the upload button 
on the upper left to upload the .docx file to Google Docs. You can then use Google Docs to read, edit or print your documents. All the content of the document will be saved in your Google account.
Method 2: Install Kingsoft Writer Free
Kingsoft Writer Free is a good Word similar that is totally free with the qualities matching Microsoft Word and includes a wide range of easy to use features such as Paragraph Adjustment Tool, Multiple Document Tabs, Table Adjustment, Built-in Word to PDF Converter. Kingsoft Writer is only 45MB in size and takes quite little computer usage. Kingsoft Write free can not only open .Docx file but also can edit and save files in DOCX format in Windows 10, Windows 8, Windows 7, Windows Vista and Windows XP.
Method 3: Using OpenOffice
OpenOffice Writer is another Word replacement completely free of charge for any purpose. It can open .docx files created with Microsoft Office 2007 and later in Windows 10, Windows 8, Windows 7, Windows Vista and Windows XP.
Method 4: Convert docx file to txt, doc or other format
You can visit online Docx converter tool to convert Docx to your preferred format. Then you can view your files easily anywhere you want. This method only applies for file size less than 100MB.