Net Monitor Software
macOS Network Utilities
Localization packages are provided separately by their localizers on a voluntary basis. There is some delay between the release of a new version of a program and it's localization packeges (if the localization is released at all).

Links to localization packages are provided for users convenience. The packages had not been examined in any way by Guy Meyer which shall have absolutely no liability in respect of them.
The following packages are available:
  1. Download the program and copy it to your hard disk.
  2. Download the localization package. Unzip if necessary. Make sure you are downloading a package which match your current program version.
  3. Select the program in the Finder.
  4. Select Get Info from the File menu.
  5. Select the Languages triangle.
  6. Press the Add button.
  7. Select the localization package you have just downloaded.
  8. Close the Info window.
  9. Launch the program.