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PeaZip, free file archiver utility, Open Source WinRar / WinZip alternative software providing unified cross-platform portable GUI for tools as 7-Zip, FreeArc, PAQ, UPX.
Create 7Z, ARC, BZ2, GZ, PAQ, PEA, self-extracting archives, TAR, WIM, XZ, ZIP files
Open and extract 150+ archive types: ACE, CAB, DMG, ISO, RAR, UDF, ZIPX files...
Features includes: extract, create and convert multiple archives at once, split / join files, strong encryption with two factor authentication, encrypted password manager, secure delete, find duplicate files, calculate hash value, export job definition as script to automate backup / restore.

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Split files and join files, split ZIP, 7Z, RAR files

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How to split / join files and e-mail attachments with PeaZip

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How to split / join files and e-mail attachments with PeaZip

PeaZip file split and merge utility is compatible with most file split applications, like Unix's splitsplit files command, HJSplit, 7-Zip...
optionally PeaZip can save a separate control file containing checksum or hash of each volume and of the complete original file, allowing file level and volume level integrity check, which will be ignored by other file split utilities, allowing to keep full compatibility with them.

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Split a file in smaller parts

Splitting a file you can select the volume size form a series of pre-set sizes (floppy disk, typical mail attachment, CD, DVD...) or you can customize it up to byte level.
PeaZip offers different ways to split/join files:
  1. From Explorer you can rightclick on a file and chose to split it from PeaZip's entry in SendTo or Context menu;
  2. Open PeaZip, chose "split file" or "join files" from main menu and provide the input file name (provide the .001 filename for merging back split files).
  3. Add a file to the archive's layout; from "Options" tab select "split" as format and set volume size and optional integrity check algorithm.
If you are splitting a file into multiple removable media, PeaZip will be check if the media has enough free space for storing the volumes, and will be asked you to provide a new empty media each time the previous one is full.
Splitting a file does not involve compression, that is usually only marginally efficient on multimedia files, like ie. MP3, OGG and other audio formats, or AVI, MPEG, DIVX and other video formats.
If you prefer to use compression, you can add the file(s) to a ZIP or 7Z archive and chose to split the archive in volumes of a fixed size, in order to keep them below the size limits of a support or mail attachment (see documentation).
This is preferable also when handling multiple multimedia files in order to store them in a single archive, split in fixed sized volumes, rather than having to split each file separately: in this case you can go in "Advanced" tab when creating the archive and select no compression (set compression to "store" level)

Join split file parts

When you receive a multipart file or archive, to join the original file back:
  1. place all the parts of the file in the same folder
  2. open it with PeaZip, i.e. doubleclick on the first volume, usually identified with extension .001, .Z01, R01, .PART1 and similar
  3. extract it wit "Extract" or "Extract all" from PeaZip's toolbar or context menu, or just drag content from PeaZip to the system
alternatively, righclick on the first volume of the spanned file and use PeaZip's entries in system's context menu: "Extract", "Extract here" etc...

Topics: file split, join files, split zip archive, split rar archive, file spanning software for Microsoft Windows and Linux operating systems, multi volume archives, split files freeware, spanned archives, multi volume zip and rar files, .001 extension, .R01 files, file join program, merge files, split mail attachments, reduce attachments size, maximum mail attachments size, file splitter.

Related articles: Open and extract split RAR .R00 .R01 file, Create split 7Z file, Create split ZIP file, Archive and split file in PEA format, Protect, attach and upload multi volume files

FAQ > File management > File spanning, split and join files, split archives, join split RAR ZIP file

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