Extract tar.7z

Download and install the latest version of Filestar.
Right click on one or more Tar.7z file(s) on your desktop and select Convert with Filestar.
Type extract in the search box.
Press Extract.

What is .tar.7z?

Name: Compressed Archive File
Extension: .tar.7z
Format: Binary
Category: Compressed
Developer: Igor Pavlov
Description: This format works based on the LZMA principle compression algorithm. It was originally used in 7-Zip archives. tar.7z archives were created for storing info about file owners and for ease of use in Unix systems, based on a TAR archiving tool.
MIME Type: application/x-7z-compressed
Wikipedia: .tar.7z on Wikipedia