The simplest approach is to use a script that processes those subfolders and their files into a CSV on the Desktop, and then you simply open that CSV in Numbers.
Here is an AppleScript that prompts you for the parent folder, and it will process the sub-folders and their files, generating a CSV on your Desktop — which you can then just open in Numbers.
Open Dock : Launchpad : Other : Script Editor.
Copy and paste the following code into Script Editor.
Click the Compile (hammer) button
Click the Run button.
-- make_csv.applescript
-- Given a selected folder that contains just one level of children folders,
-- generate a CSV
-- Tested: Ruby 2.3.7.p456, 2.6.3p2, and 2.7.0 on 10.14.6 and 10.15.2
-- VikingOSX, 2019-01-13, Apple Support Communities, No warranties.
set outCSV to POSIX path of ((path to desktop as text) & "dirfiles.csv")
set myfolder to POSIX path of (choose folder default location (path to desktop))
set args to myfolder's quoted form & space & outCSV's quoted form
my build_csv(args)
display dialog "The following CSV is on your Desktop" & return & return & outCSV
return
on build_csv(args)
return do shell script "ruby <<-'EOF' - " & args & "
#!/usr/bin/env ruby
# frozen_string_literal: true
require 'csv'
# ability to sort csv content by column names
mystruct = Struct.new(
:file_name,
:folder_name
) do
def reset
self.members.each { |k| send(\"#{k}=\", nil) }
end
end
csv_heading = %w[Filename Parent]
foo = []
inpath,outcsv = *ARGV
CSV.open(outcsv, 'wb') do |csv|
csv << csv_heading
end
csv_row = mystruct.new
# put the entire folder/file hierarchy into an array
CSV.open(outcsv, 'a+') do |csv|
Dir.glob(\"#{inpath}/**/*\").each do |f|
# construct a row in the csv
next if File.directory?(f)
csv_row.file_name = File.basename(f)
csv_row.folder_name = File.basename(File.dirname(f))
foo.push(csv_row)
csv_row = mystruct.new
end
foo = foo.sort_by { |s| [s.folder_name, s.file_name] }
foo.each do |row|
csv << row
end
end
csv_row.reset
foo.clear
EOF"
end build_csv
