Identifiers with this specific nomenclature are commonly found in:
This is typically the unique "address" of the document within its series. It points to a specific case file, report, or record entry created at a specific point in time. 008_20902_1rar
Check the "Properties" or "Details" tab if you have the file physically; it often contains the author or the organization name. you may want to look for:
To unlock the specific story behind this code, you may want to look for: 008_20902_1rar