In order to import my database (excel file) into PostgreSQL, I converted the Excel file into ".csv" file. Then, I used the application: "Import Data For PostgreSQL" and I could import my database but only the first 100 lines; knowing my database contains 80753 registration.
I tried to import the database by SQL query, but an error message appear and I don't know how to solve it:
ERREUR: séquence d'octets invalide pour l'encodage « UTF8 » : 0xcce5.