NBU (Nokia Back Up) extension is used by files created with Nokia PC Suite, a software tool for created data backup copies on Nokia phones. NBU files contains a backup copy of such data as contacts, SMS messages, calendars, and many other.
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 NFB file after converting to NBU may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from NFB to NBU 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 NFB to NBU does not meet your expectations, you can simply try to find on the Internet a different version of your file in NFB format, properly converted to a NBU file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file NFB the desired result was not achieved, you can try to change the format of NFB file to other than NBU. 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 NFB file converted by someone else, and the attempt to convert it to NBU 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 NFB file in its original format (without conversion to NBU file). Such a solution will be difficult to implement, but it certainly will give the best result.