Software like WinRAR or 7-Zip is required to join these segments back into a single usable folder or ISO. How to Extract "ER_2GB.part04.rar"
When you see a file ending in .part04.rar , it means the original data was too large for a single file. To use the contents, you must have (e.g., part01 through partXX) in the same folder. ER_2GB.part04.rar
Many file-hosting services have a 2GB file size limit for free users. Software like WinRAR or 7-Zip is required to