On Mac, use brew or this app is very good and easy to set up
A username with password for a database to which you can connect (I recommend using psql)
Usage
Log in using credentials (required)
Create a blank table, load XLSX, RDS or correctly formatted PDF file(s) into existing or new tables, or load an extant table and add columns
Save table as RDS or back into Postgres
Simply close the browser tab to quit
NBs
Previously the parsing was specific to certain inputs but has been revised to make the package more extensible to any input. This uses a modal to rename column names of imported data into the preferred formatting, or into user-defined column naming.