Correct spelling, explanation: personnel is a noun that originates from the French word personnel. This loanword did not change its writing form, only the pronunciation got Anglicized. Therefore the correct spelling is personnel with two n, and not personel, which is a misspelling.

Definition of personnel:
noun: all the people that are employed by a company;
There have been a lot of personnel changes in our company this year, we have a lot of new faces.
– the department in the company that deals with the employees’ matters like joining, leaving, training, and their other needs;
If you need any information about language courses funding, please contact the personnel department.

Incorrect spelling, explanation: personel is a misspelled version of noun personnel. This word came from the French language and kept its original spelling – personnel. For this reason, the form personel is not correct, because there is one letter missing. The right version is personnel.

Incorrect spelling

Incorrect spelling

Incorrect spelling