Open 001 files in your browser
The first part of an archive cut into pieces, like Trip.7z.001. Drop every part here, and the archive opens as one. Nothing leaves your device.
Or drop it anywhere on this page
What you'll see
Your archive opens like a folder, its files listed on the left.
- Listed like a folder • Unpacks only what you pick
- Locked archives • Hidden file names included
- Search • Find any file by its name
- Export • Save as ZIP or Extract all
About 001
An archiver splits a big archive into parts so each fits an email, an upload limit or a FAT32 drive, and names them after the archive with a number: Trip.7z.001, Trip.7z.002 and on. 7-Zip writes them this way for any archive, and so do many download sites, for 7Z, ZIP, RAR and TAR files and disc images like ISOs.
No part opens on its own, since an archive's list of files is often at its end and its files run across the cuts. Windows, macOS and phones don't put the parts back together by themselves.
Drop every part together and Filepeek opens them as the archive they make, in order, without joining them into one file first: its files listed like a folder, each opening in its own viewer, with Save as ZIP and Extract all. A later part dropped alone says it needs the others.
Split archive part
.001
Format
- MIME type
- application/octet-stream
- Made by
- 7-Zip and other archivers
Inside the file
- Holds
- A slice of one archive
- Named
- Trip.7z.001, Trip.7z.002 and on
- Opens
- With every part together
- Made by
- 7-Zip and other archivers
Opens in every browser
Filepeek opens split archives in Chrome, Edge, Firefox and Safari, from their parts as they are. No browser opens them by itself.
- YouChromeOpens through Filepeek
- YouEdgeOpens through Filepeek
- YouFirefoxOpens through Filepeek
- YouSafariOpens through Filepeek
Apps that open 001
- Windows7-Zip, with every part beside it
- MacKeka and The Unarchiver
- iPhone and iPadNo app built in opens it
- AndroidZArchiver
Questions
How do I open a .001 file?
Drop the .001 together with the .002 and every later part, or the folder they're in. They open as one archive.
Do I need to join the parts first?
No. Filepeek reads them in order as one file, so there's no need for copy /b or cat, and nothing is joined on your disk.
What if a part is missing?
An archive's files often run across the cuts, so a missing part leaves some files out. Find every part, from .001 to the last, and drop them all.
Can I turn it into one ZIP?
Yes. Once the parts open, choose Export, then Save as ZIP, and you get the whole archive as one ZIP.