Question

How to write into a temporary file (in the temp folder of a machine) from a Rails app, I am using Spreadsheet::Workbook.new and I want the contents to be written into a temp file

Answer 1

You can use the Ruby’s Tempfile:

file = Tempfile.new('prefix')

or with a block:

Tempfile.new('prefix') do |file|
  # do the work with the file
end