[art]

"if you accepted multiple spellings for the field headers e.g. match the first 4 letters"
Please NO, it's common that users have to be precise with the keywords for database imports. It would just cause different confusion.
uppercase / lowercase doesn't matter (already)

"unrecognized keywords? (I suspect you ignore them - I would if I was programming it!)"
title and pages are mandatory, all other fields are optional, columns with unknown keywords in the header are ignored.
That definitely makes sense. I prefer e.g. the CSV files to be sorted alfabetically by title for import. But it makes sense to have an additional "number" column that is ignored by MSP to sort it back to the original sequence of pages in the fakebook for proof-reading. Sorting by "pages" doesn't help in that case as it is text and is sorted 1, 10, 11, 2, ...
A warning (and allowing the user to cancel the import) might be helpful. But the option to continue import ignoring unrecognized columns is essential.

hi everyone chris kindly helped me with a csv file with real book, which worked ok, the problem now is my whole library is missing, all the folders are in the database but no pdf's, the real books which have been edited are all ok, i have searched all folders cant find them, any ideas, thanks