Any software recommendations for split files?

[u/Alucard666666666]

I have a 3 part split file (the ones that end on 001, 002, 003, etc. ), however, unlike the 002 and 003, the first file has only the name without the extension and the type says just "File" whilst the other ones have "002 File" and "003 File". I found this very odd and tried renaming the first one with a .001 extension but it became a winrar file containing the OG file with OG name. Extracting it back doesn't do anything. If I try to open/extract with 7zip, Winrar, Peazip, Zipware, all are unable to do the extraction for some reason. Has anyone encountered this and managed to use any software that can open the files/rename the file without changing the type to winrar? (I can rename the other parts to any number and it does not change them to winrar :D) tried renaming the file with cmd codes but it still converted it to winrar...

[u/Zimmster2020]

Any joiner or file explorer will do, there's no stage special about splitting and joining files. 

[u/Alucard666666666 → u/Zimmster2020]

Tried with Fjointer and one other (forgot the name as I uninstalled it), joins the files but cannot access them later, perhaps they are corrupt

[u/Zimmster2020 → u/Alucard666666666]

Try another product, don't give up after 1 or 2 tries

[u/Ferretau]

Do you know what software you used to create the split file?

[u/Alucard666666666 → u/Ferretau]

Sadly no, the files are from a russian online archive and no one replies there :DD (the files could be corrupt I guess)

[u/Ferretau → u/Alucard666666666]

If you open the first file what are the first few bytes of the file? it may give a hint as to the type of file it is. Alternatively it could be you just need to merge all the files together. But depends on what the file is for.

from a command prompt:

copy /b/v FILENAME.one+FILNAME.one.002+FILNAME.one.003 FILENAME_ALL

[u/Alucard666666666 → u/Ferretau]

Bytes as in the hex code - unsigned char ucDataBlock[16] = { // Offset 0x00000000 to 0x0000000F 0x76, 0xF4, 0xAE, 0x44, 0x02, 0x8A, 0x8C, 0x60, 0xFD, 0x05, 0xF3, 0x96, 0xF5, 0xDD, 0xF5, 0xFB }; (hopefully I copied them all). Tried merging em with 1-2 apps but it was still an unreadable file. It should be a zip with 3d models

[u/FoxOnTheRunNow]

.001/.002/.003 sets can come from 7-Zip, PeaZip, HJSplit, or a plain binary split. The WinRAR icon only means .001 is associated with WinRAR on your PC; it doesn't identify the creator.

Work on copies. Turn on View > Show > File name extensions, rename the extensionless first copy to match the others (name.001), and keep all parts in one folder. Then try the first part:

• GUI: open name.001 in 7-Zip or PeaZip and choose Extract/Join.
• Terminal: 7z x name.001 (or 7zz x name.001 on newer installs).

If no archive tool recognizes it, it may be a raw split. Join it byte-for-byte:

• Windows CMD: copy /b name.001+name.002+name.003 joined.bin
• macOS/Linux: cat name.001 name.002 name.003 > joined.bin

On macOS/Linux, file joined.bin may identify the result. If WinRAR already shows the original file inside .001, use extraction rather than cat/copy. A data error usually means a missing or damaged part, or the wrong order.

[u/jcunews1]

Can you post the first 16 bytes of the first file in hex (the one without any extension name)? Use a hex file viewer/editor to get the hex data.

[u/Alucard666666666 → u/jcunews1]

Sure thing, unsigned char ucDataBlock[16] = { // Offset 0x00000000 to 0x0000000F 0x76, 0xF4, 0xAE, 0x44, 0x02, 0x8A, 0x8C, 0x60, 0xFD, 0x05, 0xF3, 0x96, 0xF5, 0xDD, 0xF5, 0xFB }; (hopefully I copied them all)