We do not support wildcard entry by Bulk CSV.
You need to enter zip characters and wildcards manually within the Zipcode Sets.
. (dot) - for Number
* (asterisk) - for Alphabets
Only a single respective character can be placed for each appearance of the above.
Example:
123... (It'll accept any digits for the last 3 positions.)
KT** (It'll accept any alphabet for last 2 positions.)