Feature requests

Suppose a CSV has 10 date columns (e.g., some in "MM/dd/yyyy" and others in "MMM d yyyy"), and we want to change the format of all columns to "yyyy-MM-dd." Instead of manually changing the format for each column, there should be an option to change the date format for all columns at once. I see this option being available in two places: As a button on the Import dialog, located to the right of the 'Set Column Data Formats to Text' button. This would display a popup dialog where we could either manually specify a date format or choose one using the 'Format Cells' dialog. An option in the Advanced Import Settings to automatically reformat dates to a specific date format. When this option is enabled, it will automatically reformat dates to the specified date format for both file open and import functionality.