CSV
From The RadioReference Wiki
CSV is an acronym that stands for Comma Separated Values. These types of files can also be read by Excel and most text based editor programs.
Documents that are CSV formatted look like the following:
155.550,Frankie Fire Dispatch,CH-1,FM 154.295,Frankie Fire Tactical,CH-2,FM 154.280,Frankie Fire Mutual Aid,CH-3,FM
CSV file formats are useful for exchanging data between systems and spreadsheets.