Table column headings PgAmin4

I am quite new to PostgreSQL and I am having difficulty with the following:

I am trying to input a csv file into a table that has a very large number of
columns. This means that it is impractical to create a table and specify the
name of all the columns. Can the column headings be taken from the first
line of the csv file?

Additionally, I have tried to do this with smaller number of columns with
CREATE table but the column headings appear in a different order to what is
in the csv file (that cannot be edited). I then cannot edit (cut and paste
as you would expect!) the SQL to change the order of the columns. Surely
there must be a way of doing this!! I have no control over the input csv
files that contain the data.

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