Opening a ZIP is not the same as extracting it
A ZIP is a container. Listing shows stored names and sizes; extraction reconstructs selected file bytes. OpenFileTools inspects the central directory before decompression and never executes an entry.
Review before extracting
Choose the ZIP, inspect its hierarchy and compressed versus expanded sizes, deselect unwanted entries, then download individual files or a ZIP containing only the selected extracted results.
Traversal and ZIP-bomb defenses
Unsafe ../, absolute, drive-letter, excessive-entry, excessive-expansion, and extreme compression-ratio archives are rejected before extraction. HTML and SVG are not automatically rendered, so active content remains inert file data.
Corrupted and password-protected archives
A missing or malformed central directory indicates corruption or an unsupported archive layout. Password-protected and ZIP64 archives are disclosed as unsupported rather than partially extracted.
Privacy and troubleshooting
Archive bytes remain in browser memory. If extraction fails, obtain a fresh archive from the sender and verify its checksum when one is published; renaming a damaged file does not repair it.
- Do not open unexpected executables merely because extraction succeeded.
- Extraction does not prove a file is trustworthy.