2Split!

If you're looking for a reliable and efficient file splitting and rebuilding utility, look no further than this powerful software. It's packed with a range of impressive features that allow users to easily split files into disks with auto size detection, create disk images for later use with supported disk sizes ranging from 360k to 270M, and even split files to fixed size or number.

But that's not all - this software also boasts batch splitting capabilities, making it a snap to rebuild in MSDOS or Windows 3.X. You can even send parts of files via email as attachments, thanks to the program's integrated email functionality.

Another great thing about this software is its fast copying speed - it can copy an entire 1.44M disk in under 40 seconds, making it ideal for quickly and easily transferring large amounts of data. Plus, the software's simple file rejoining and self-rebuilding options make it easy to use, even for beginners.

And last but not least, this software features an easy-to-use and visually pleasing user interface that makes it a pleasure to work with. All in all, if you're in need of a powerful and reliable file splitting and rebuilding utility, this software is definitely worth checking out.