You can open this file format using other file compress software like file extension qif and others. Therefore you do not need to use different software for compressing files and opening compressed files. Sometimes there may encounter some problem in operating this file extension qif you do not need to panic because in most of the cases, the error is due to the missing of some drivers in your operating system.
They provide the free driver scan software also and if you want to update your hardware drivers, then you can just scan your computer automatically by running their application and they will find the driver for updates. Now you can use file extension qif which is the compressed file format and even the 2D and 3D files and data can be compressed in this format. Also you can include the files of Google Earth and other similar applications in this file format.