If you are watching on a major platform, Portuguese subtitles are usually built-in:
A popular site specifically for Brazilian Portuguese (pt-BR) fans. The Office (2005) PortuguГЄs (pt) Legendas
Rename the .srt file to match your video file exactly. Example: TheOffice.S01E01.mp4 + TheOffice.S01E01.srt Same folder: Keep both files in the same folder. If you are watching on a major platform,