How to add a file to an archive?

Question

Data archiving

There are many archives, how to add a file inside them?
Preferably automatically to all at once

Answer 1

Write a batch file with the following content:
Adds the new_file.txt file to all rar archives found in the C:\Arhives folder , the "-ep" switch indicates that the file must be added without paths.
If the archives are zip, then write *.zip instead of *.rar.
For other archivers, the command to add to the archive and the keys may be different, but this can be easily found in the help for a particular archiver.

Answer 2

What type of archive? If 7ZIP supports creating this type of archive, use its console version 7z.exe