Are you trying to a backup with this file, or are you getting an error message when trying to open it? Fresh Windows install triggers Windows Defender, breaks

If you are seeing an error like involving a .tmp extension added to your archive name, it is usually because 7-Zip doesn't have write access to the directory where it's trying to create the file.

Ensure you have or Write permissions for the folder where you are saving the archive. Try running your terminal or 7-Zip GUI as an Administrator. 4. Security Warning

If you want to compress a folder or specific files into an archive named tmp.7z , use the following command-line syntax: 7z a tmp.7z ./your_folder_name To compress specific files: 7z a tmp.7z file1.txt file2.jpg 2. Common Use Case: Temporary Backups

7-Zip creates temporary files in the target directory (where the final archive will live), not necessarily your current working directory.