TGZ is an archive format used by GNUzip (Gzip) tool. This format is in no way related to Windows zip format. TGZ files store TAR archives. TGZ extension is equivalent to TAR.GZ extension and such files are essentially the same. TGZ uses deflate compression algorithm.
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 TGZ file after converting to IGZ may differ slightly from the original. The most important information should be kept, but if you want the file after conversion from TGZ to IGZ 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 TGZ to IGZ does not meet your expectations, you can simply try to find on the Internet a different version of your file in TGZ format, properly converted to a IGZ file by someone else. If this fails, use the information provided in the further part of the website.
If after converting the file TGZ the desired result was not achieved, you can try to change the format of TGZ file to other than IGZ. 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 TGZ file converted by someone else, and the attempt to convert it to IGZ 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 TGZ file in its original format (without conversion to IGZ file). Such a solution will be difficult to implement, but it certainly will give the best result.