✨feature: Add windows batch file, add support for xlsx output

print-estimate.bat

@@ -0,0 +1,17 @@
+@echo off
+setlocal
+
+:: Location of the project (adjust if you move the repo)
+set "PROJECT_DIR=C:\Users\ksolo\Projects\3D Print Estimator"
+set "PY_SCRIPT=%PROJECT_DIR%\estimator.py"
+set "CONFIG=%PROJECT_DIR%\printer-config.json"
+
+:: First arg = output format (csv/json/xlsx), default to csv if omitted
+set "FMT=%~1"
+if "%FMT%"=="" set "FMT=csv"
+
+:: Second arg = optional output path. Only pass --out when provided to avoid argparse errors.
+set "OUT_ARG="
+if not "%~2"=="" set "OUT_ARG=--out \"%~2\""
+
+python "%PY_SCRIPT%" --config "%CONFIG%" --output-format "%FMT%" %OUT_ARG%