Read broadly, write deliberately
Extraction accepts ZIP, 7Z, RAR, TAR, GZ, BZ2, XZ, ISO, CAB, WIM and MSI, plus split volumes in .001 and .part1 form. Creation writes ZIP, 7Z, TAR, GZ, BZ2 and XZ, including split output for media that must fit a size limit.
RAR is read-only because the proprietary compression format's write licence is not something a free tool can carry honestly. Rather than ship a shaky reimplementation, we open what people send you and create in the two formats that matter — ZIP for compatibility, 7Z for ratio and AES-256.
AES-256, and what a password does not do
Encrypted ZIP and 7Z archives use AES-256, and file names are protected in 7Z headers, which ZIP cannot fully do. That difference is the reason to prefer 7Z when the contents are sensitive and the receiving tool supports it.
The rest is up to the passphrase: an archive is a long-lived file, and one you may hand to someone else or upload somewhere public. A short dictionary password is brute-forced offline by anyone holding the file, so length beats symbol soup. Encrypting also does not anonymise contents when metadata leaks — check the preview pane before you send.
Verify before you extract
Extracting blindly is how a corrupt archive becomes a half-written tree. x2y Extractor surfaces integrity status and checksum verification in the archive properties panel, alongside compression ratio and file count, so the archive is judged before it is unpacked.
That habit generalises. Archives from untrusted sources deserve a look inside first: browse the paths in the preview, note executable and script entries, and extract into a dedicated folder rather than your documents tree.
Previews and the dual-pane habit
Inline previews for text, images and metadata mean the common question — is this the right build? does this contain the config I need? — gets answered without extracting 4 GB to find out. The dual-pane browser keeps source and destination visible at once, which is what actually prevents extraction into the wrong folder.
Batch extraction with destination presets covers the repetitive case: a folder of per-customer archives that all follow the same layout. Light and dark themes are a preference, not a subscription tier.