Files with the .DOCX extension contain formatted text documents, possibly with graphic elements, stored in a native format of Microsoft Word, since its 2017 version. DOCX files are an element of Office Open XML format specification.
Files with the FB2 extension (Fiction Book 2.0) are eBook files, supported by various reading devices. The format is based on XML, but unlike the EPUB format (which contains data in different files but a in a single ZIP package), its structure comprises of a single XML file.
After converting the file to the new format, you will be able to use other programs to support it. Keep in mind, however, that the DOCX file after converting to FB2 may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from DOCX to FB2 to be the same, you have to do this carefully and choose the proper application from the list below.
There is no guarantee, of course, that the conversion will come up to all your expectations, but it will certainly help you. If, after all, the effect of converting DOCX to FB2 does not meet your expectations, you can simply try to find on the Internet a different version of your file in DOCX format, properly converted to a FB2 file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file DOCX the desired result was not achieved, you can try to change the format of DOCX file to other than FB2. On our website you will find more information on the following conversion options
Unfortunately, if after performing the two previously described steps (trying to find your DOCX file converted by someone else, and the attempt to convert it to FB2 on your own) you still have a problem with your file, then there are only a few solutions left. You can once again try to find and install an application that can open the DOCX file in its original format (without conversion to FB2 file). Such a solution will be difficult to implement, but it certainly will give the best result.