Unfortunately some journals still force authors to submit .docx files. This has been a burden for my workflow at times. Thanks to Roman Senninger I started using pandoc as of yesterday. Pandoc does an excellent job converting your TeX file into a .docx by specifying the following options in your Mac terminal:
pandoc -s test.tex –bibliography library.bib -o test.docx
Unfortunately pandoc cannot deal with tables. So you will still need to re-export your tables either from the final PDF using Adobe Acrobat or by re-estimating your results in R (Stata or whatever) and exporting them into excel.