File: Doublep_210608-210615.zip ... [ 2027 ]

"Compressed archive containing [Project Name/Data Type] records for the period of June 8, 2021, through June 15, 2021."

: A compressed folder containing multiple files to save space and keep them together. File: DoubleP_210608-210615.zip ...

Based on standard naming conventions, here is how the text breaks down: through June 15

This filename appears to be an archive of project or transaction data spanning from June 8, 2021, to June 15, 2021. to June 15

: Represents the start date in YYMMDD format (June 8, 2021). 210615 : Represents the end date (June 15, 2021).