diff --git a/src/danfojs-node/test/samples/sampleOut.xlsx b/src/danfojs-node/test/samples/sampleOut.xlsx
index 3f1f1c53..30b62258 100644
Binary files a/src/danfojs-node/test/samples/sampleOut.xlsx and b/src/danfojs-node/test/samples/sampleOut.xlsx differ
diff --git a/src/danfojs-node/test/samples/test.xlsx b/src/danfojs-node/test/samples/test.xlsx
index 409e43c1..4e6839ec 100644
Binary files a/src/danfojs-node/test/samples/test.xlsx and b/src/danfojs-node/test/samples/test.xlsx differ
diff --git a/src/danfojs-node/test/samples/testSeries.xlsx b/src/danfojs-node/test/samples/testSeries.xlsx
index 270f769c..e9208a69 100644
Binary files a/src/danfojs-node/test/samples/testSeries.xlsx and b/src/danfojs-node/test/samples/testSeries.xlsx differ