Large files are often broken into smaller pieces (like .part01, .part02) to make them easier to upload or download.
Are there in the same folder with similar names? What is the total number of parts in the set? 2GB.part07.rar
If you found this file on your computer and don't know what it is, try searching your browser (Ctrl+J) or your Email for "2GB.part" to find the original download link or description. Large files are often broken into smaller pieces (like