The files ending in .DOC are the designation for Word 2003 (and earlier). Files ending in .DOCX are the newer version files. The .DOCX files are a different format of file altogether. The .DOCX file is actually a ZIPped archive, with files inside of it based on XML language. If you want, you can rename a .DOCX (or .XLSX) file to have a .ZIP extension, then double click it and it will open up the ZIP archive and show the other files.
docx is a word document file & dotx is a word template file.
.docx
.docx The extension docx is used in Word 2007.
.doc or .docx
By making it into a zip file.. that is the easiest way to do it!
.docx
"Docx" is the default file extension for Word 2013 edition.
.docx is the default file format for documents from Word 2007 onward.
.DOCX
.docs, .docx
You can transfer it to your phone but i dont think it will be recognize,change it to a zip file. Zip is compatible with android.