File spanning

File spanning

File Spanning is a term used to describe the ability to package a single file or data stream into separate files of a specified size. It also implies the ability to re-combine the package files back into the original file or data stream.

This is useful when saving large files onto smaller volumes or breaking large files up into smaller files for network messages of limited size (email, newsgroups). It also allows the creation of parity files (parchive) to verify and restore missing or corrupted package files.

Sometimes the file spanning process is hidden as a secondary operation such as with file archivers. In this case, many smaller files are first packaged into a data stream and then repackaged into a multi-file archive.

File Spanning Software

Hundres or thousands of file spanning utilities are available for nearly every OS and platform. Below are a few examples:
* PKZip/WinZip * RAR/WinRAR

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