- Joined
- Nov 18, 2025
- Messages
- 22
- Reaction score
- 1
It usually happens because iPhone does not understand CSV files at all, because CSV files are mainly usable for spreadsheets, not for phone contacts. iOS is built to read vCard (VCF) format only. That’s why CSV files get rejected. Many users face this issue when exporting contacts from Gmail. The safest way is to first convert CSV into VCF format before importing. Manual ways work for small lists but fail for large files. So you need to use an offline CSV-to-VCF conversion tool. When I got stuck on this problem, I used this reliable WholeClear CSV to VCF converter software that easily avoids errors and makes the file instantly readable for iPhone. Once the file is in VCF format, iPhone accepts it without any problem.