diff --git a/.gitignore b/.gitignore
index dc5b575..c603711 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,3 +46,4 @@ coverage/*
 .tool-versions
 
 spec/gemfiles/*.lock
+.byebug_history
diff --git a/spec/gemfiles/Gemfile.rails-7.0 b/spec/gemfiles/Gemfile.rails-7.0
new file mode 100644
index 0000000..9a8f6e0
--- /dev/null
+++ b/spec/gemfiles/Gemfile.rails-7.0
@@ -0,0 +1,14 @@
+source "http://rubygems.org"
+
+gemspec path: '../../'
+
+gem 'rails', "~> 7.0.0"
+gem 'responders', '~> 3.0'
+gem 'sqlite3'
+gem 'sprockets', '~> 3.0'
+gem "jquery-rails"
+gem "thin"
+gem 'capybara', '~> 2.1'
+gem 'acts_as_caxlsx', git: 'https://github.com/caxlsx/acts_as_caxlsx.git'
+
+gem 'byebug'
diff --git a/spec/rails_app/app/controllers/users_controller.rb b/spec/rails_app/app/controllers/users_controller.rb
index 96cf4ac..943f646 100644
--- a/spec/rails_app/app/controllers/users_controller.rb
+++ b/spec/rails_app/app/controllers/users_controller.rb
@@ -19,7 +19,11 @@ def index
   def show
     @user = User.find(params[:id])
     respond_with(@user) do |format|
-      format.xlsx { render "respond_with.xlsx.axlsx" }
+      if Gem::Version.new("7.0") <= Rails.gem_version
+        format.xlsx { render "respond_with" }
+      else
+        format.xlsx { render "respond_with.xlsx.axlsx" }
+      end
     end
   end