All data are stored in the program in the form of projects, setting any project easily changed by adding or removing the required information. The program has a user-friendly interface that is easy to learn and use, makes it possible to process data obtained from all GNSS receivers Topcon, as well as data from the receivers of other manufacturers, provided observations in converting files to RINEX. The program is easy to install on any PC, compatible with different operating sictemami Windows. Topcon Tools developed in such a way as to simplify the basic operations of processing and equalization of field observations, which is especially important for both experienced and novice only for surveyors. Topcon Tools Program is designed to improve and equalize the observations from various surveying instruments.