The term "Cahier" often appears in French-language custom content (CC) blogs. For instance, Around the Sims 4 offers a 2017 Advent Calendar Gift Set which includes various "cahiers" (notebooks) or office-themed objects.
This will help me track down the exact PDF you need. Download 2017 cahier bvr ts4 pdf
Use the CurseForge Sims 4 Hub or The Sims Resource to find curated sets from 2017. The term "Cahier" often appears in French-language custom
Search the DCS World User Files for "BVR" or "Timeline" to find PDF tactical guides. these verified platforms are the standard:
If you are looking for advanced "deep content" for these hobbies, these verified platforms are the standard: