I have a worksheet that stores 11 columns of data relating to bookings on a daily basis over a 12-month period. There can be multiple lines for a particular day and not all the cells have a data entry. A sample is attached. For another process, extracting the data from a copy of the file saved in CSV format using the PHP function fgetcsv, I need to put dummy data in the empty cells. Otherwise the function fails at the first empty cell in each row.
How can I get enter e.g. a full stop in all empty cells with a formula or perhaps a macro? Your help would be very much appreciated.