What should I do before installing a new version of RTF TO XML if an old version is already installed?

To install a new version of RTF TO XML to the same location where a previous version was installed, you must at first remove all files and subdirectories of the previous version. You can also install a new version to another location. In this case, you need no removing at all and you can use both the previous and the new version on your choice.

Uninstall of the RTF TO XML is quite simple: remove the root directory of RTF TO XML together with all files and subdirectories in it.