diff --git a/.gitignore b/.gitignore
index b6a6635..ed443c3 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,4 +9,5 @@
 payments.csv
 document.aux
 document.pdf
-
+*.mta
+*.ods
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..80a6d58
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,40 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    cmxl (1.5.0)
+      rchardet19
+    humanize (2.5.1)
+    nokogiri (1.16.3-aarch64-linux)
+      racc (~> 1.4)
+    nokogiri (1.16.3-arm-linux)
+      racc (~> 1.4)
+    nokogiri (1.16.3-arm64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.16.3-x86-linux)
+      racc (~> 1.4)
+    nokogiri (1.16.3-x86_64-darwin)
+      racc (~> 1.4)
+    nokogiri (1.16.3-x86_64-linux)
+      racc (~> 1.4)
+    racc (1.7.3)
+    rchardet19 (1.3.7)
+    roo (2.10.1)
+      nokogiri (~> 1)
+      rubyzip (>= 1.3.0, < 3.0.0)
+    rubyzip (2.3.2)
+
+PLATFORMS
+  aarch64-linux
+  arm-linux
+  arm64-darwin
+  x86-linux
+  x86_64-darwin
+  x86_64-linux
+
+DEPENDENCIES
+  cmxl (~> 1.5.0)
+  humanize (~> 2.5.1)
+  roo (~> 2.10.0)
+
+BUNDLED WITH
+   2.5.3