diff --git a/.gitignore b/.gitignore
index 74b4264..0c98787 100644
--- a/.gitignore
+++ b/.gitignore
@@ -171,4 +171,10 @@ cython_debug/
 .ruff_cache/
 
 # PyPI configuration file
-.pypirc
\ No newline at end of file
+.pypirc
+
+# Output files
+*.pdf
+*.xlsx
+*.xls
+*.csv
\ No newline at end of file
diff --git a/data/sample_bingo_data.csv b/data/sample_bingo_data.csv
new file mode 100644
index 0000000..a11231e
--- /dev/null
+++ b/data/sample_bingo_data.csv
@@ -0,0 +1,16 @@
+B,I,N,G,O
+B1,I16,N31,G46,O61
+B2,I17,N32,G47,O62
+B3,I18,N33,G48,O63
+B4,I19,N34,G49,O64
+B5,I20,N35,G50,O65
+B6,I21,N36,G51,O66
+B7,I22,N37,G52,O67
+B8,I23,N38,G53,O68
+B9,I24,N39,G54,O69
+B10,I25,N40,G55,O70
+B11,I26,N41,G56,O71
+B12,I27,N42,G57,O72
+B13,I28,N43,G58,O73
+B14,I29,N44,G59,O74
+B15,I30,N45,G60,O75
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
index 5ae933e..08315ad 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -12,10 +12,11 @@ dependencies = [
 ]
 
 [project.scripts]
-custombingo = "main:main"
+custombingo = "custom_bingo.main:main"
 
-[tool.setuptools.packages.find]
-where = ["src"]
+[tool.setuptools]
+packages = ["custom_bingo"]
+package-dir = {"custom_bingo" = "src/custom_bingo"}
 
 [build-system]
 requires = ["setuptools>=45", "wheel"]
diff --git a/main.py b/src/custom_bingo/main.py
similarity index 100%
rename from main.py
rename to src/custom_bingo/main.py