Rivstart is a popular Swedish language course, and C1 and C2 are likely referring to the Common European Framework of Reference for Languages (CEFR) levels.
: Includes teaching tips, printable tests, listening scripts, and photocopiable materials. Digital and PDF Resources rivstart c1 c2 pdf
If you want the actual Rivstart C1/C2 PDF , you are likely going to have to pay for it via a platform like Kortext or Adlibris e-book section. Or, you do what advanced learners do: buy the physical book. Rivstart is a popular Swedish language course, and
Finding these PDFs typically involves looking at educational platforms or official publishers: Official & Academic Sources rivstart c1 c2 pdf