Previously, when you exported product data in CSV or Excel format the default file name would just be the name of the first column of the spreadsheet in lower case. For example,
product_handle.csv. This naming convention could make it difficult to go back and find an downloaded export you were looking for.
We've updated the default file name for the exports so now they're in the format of:
Product Handles 2023-03-23_090807.csv
You can always override the file name when you generate an export but we hope this change in defaults will make it easier to find previous exports.