diff --git a/src/main/java/io/github/dgroup/poi/cell/Cell.java b/src/main/java/io/github/dgroup/xlsx/cell/Cell.java
similarity index 97%
rename from src/main/java/io/github/dgroup/poi/cell/Cell.java
rename to src/main/java/io/github/dgroup/xlsx/cell/Cell.java
index 232a01d..7d3a176 100644
--- a/src/main/java/io/github/dgroup/poi/cell/Cell.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/Cell.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import org.cactoos.Scalar;
 
diff --git a/src/main/java/io/github/dgroup/poi/cell/CellOf.java b/src/main/java/io/github/dgroup/xlsx/cell/CellOf.java
similarity index 99%
rename from src/main/java/io/github/dgroup/poi/cell/CellOf.java
rename to src/main/java/io/github/dgroup/xlsx/cell/CellOf.java
index efc51ca..2f232c1 100644
--- a/src/main/java/io/github/dgroup/poi/cell/CellOf.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/CellOf.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import java.time.LocalDate;
 import java.time.LocalDateTime;
diff --git a/src/main/java/io/github/dgroup/poi/cell/DateOf.java b/src/main/java/io/github/dgroup/xlsx/cell/DateOf.java
similarity index 98%
rename from src/main/java/io/github/dgroup/poi/cell/DateOf.java
rename to src/main/java/io/github/dgroup/xlsx/cell/DateOf.java
index 52af0f7..b59d045 100644
--- a/src/main/java/io/github/dgroup/poi/cell/DateOf.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/DateOf.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import java.time.LocalDate;
 import java.time.ZoneId;
diff --git a/src/main/java/io/github/dgroup/poi/cell/HasCells.java b/src/main/java/io/github/dgroup/xlsx/cell/HasCells.java
similarity index 99%
rename from src/main/java/io/github/dgroup/poi/cell/HasCells.java
rename to src/main/java/io/github/dgroup/xlsx/cell/HasCells.java
index 6ca27ca..d640e96 100644
--- a/src/main/java/io/github/dgroup/poi/cell/HasCells.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/HasCells.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import java.time.ZoneId;
 import java.util.Collection;
diff --git a/src/main/java/io/github/dgroup/poi/cell/IndexOf.java b/src/main/java/io/github/dgroup/xlsx/cell/IndexOf.java
similarity index 98%
rename from src/main/java/io/github/dgroup/poi/cell/IndexOf.java
rename to src/main/java/io/github/dgroup/xlsx/cell/IndexOf.java
index 43594a4..333caed 100644
--- a/src/main/java/io/github/dgroup/poi/cell/IndexOf.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/IndexOf.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import org.cactoos.Scalar;
 
diff --git a/src/main/java/io/github/dgroup/poi/cell/MonthOf.java b/src/main/java/io/github/dgroup/xlsx/cell/MonthOf.java
similarity index 97%
rename from src/main/java/io/github/dgroup/poi/cell/MonthOf.java
rename to src/main/java/io/github/dgroup/xlsx/cell/MonthOf.java
index ad2b531..7b0c9d2 100644
--- a/src/main/java/io/github/dgroup/poi/cell/MonthOf.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/MonthOf.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import java.time.YearMonth;
 import java.time.format.TextStyle;
diff --git a/src/main/java/io/github/dgroup/poi/cell/MutableCell.java b/src/main/java/io/github/dgroup/xlsx/cell/MutableCell.java
similarity index 97%
rename from src/main/java/io/github/dgroup/poi/cell/MutableCell.java
rename to src/main/java/io/github/dgroup/xlsx/cell/MutableCell.java
index f270e31..529e081 100644
--- a/src/main/java/io/github/dgroup/poi/cell/MutableCell.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/MutableCell.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import org.apache.poi.xssf.usermodel.XSSFRow;
 
diff --git a/src/main/java/io/github/dgroup/poi/cell/Range.java b/src/main/java/io/github/dgroup/xlsx/cell/Range.java
similarity index 99%
rename from src/main/java/io/github/dgroup/poi/cell/Range.java
rename to src/main/java/io/github/dgroup/xlsx/cell/Range.java
index d06cf00..6164631 100644
--- a/src/main/java/io/github/dgroup/poi/cell/Range.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/Range.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import java.util.List;
 import java.util.Objects;
diff --git a/src/main/java/io/github/dgroup/poi/cell/package-info.java b/src/main/java/io/github/dgroup/xlsx/cell/package-info.java
similarity index 97%
rename from src/main/java/io/github/dgroup/poi/cell/package-info.java
rename to src/main/java/io/github/dgroup/xlsx/cell/package-info.java
index 5ff1617..10706f2 100644
--- a/src/main/java/io/github/dgroup/poi/cell/package-info.java
+++ b/src/main/java/io/github/dgroup/xlsx/cell/package-info.java
@@ -27,4 +27,4 @@
  *
  * @since 0.1.0
  */
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
diff --git a/src/main/java/io/github/dgroup/poi/row/MutableRow.java b/src/main/java/io/github/dgroup/xlsx/row/MutableRow.java
similarity index 94%
rename from src/main/java/io/github/dgroup/poi/row/MutableRow.java
rename to src/main/java/io/github/dgroup/xlsx/row/MutableRow.java
index 14c1907..e20b9fd 100644
--- a/src/main/java/io/github/dgroup/poi/row/MutableRow.java
+++ b/src/main/java/io/github/dgroup/xlsx/row/MutableRow.java
@@ -22,9 +22,9 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.row;
+package io.github.dgroup.xlsx.row;
 
-import io.github.dgroup.poi.cell.MutableCell;
+import io.github.dgroup.xlsx.cell.MutableCell;
 
 /**
  * An excel row which may change the cell(s) value for within particular row.
diff --git a/src/main/java/io/github/dgroup/poi/row/Row.java b/src/main/java/io/github/dgroup/xlsx/row/Row.java
similarity index 97%
rename from src/main/java/io/github/dgroup/poi/row/Row.java
rename to src/main/java/io/github/dgroup/xlsx/row/Row.java
index 8927e3f..180f66c 100644
--- a/src/main/java/io/github/dgroup/poi/row/Row.java
+++ b/src/main/java/io/github/dgroup/xlsx/row/Row.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.row;
+package io.github.dgroup.xlsx.row;
 
 import org.apache.poi.xssf.usermodel.XSSFRow;
 import org.cactoos.Scalar;
diff --git a/src/main/java/io/github/dgroup/poi/row/RowOf.java b/src/main/java/io/github/dgroup/xlsx/row/RowOf.java
similarity index 97%
rename from src/main/java/io/github/dgroup/poi/row/RowOf.java
rename to src/main/java/io/github/dgroup/xlsx/row/RowOf.java
index 7380033..279a847 100644
--- a/src/main/java/io/github/dgroup/poi/row/RowOf.java
+++ b/src/main/java/io/github/dgroup/xlsx/row/RowOf.java
@@ -22,9 +22,9 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.row;
+package io.github.dgroup.xlsx.row;
 
-import io.github.dgroup.poi.cell.MutableCell;
+import io.github.dgroup.xlsx.cell.MutableCell;
 import java.util.concurrent.atomic.AtomicInteger;
 import org.apache.poi.xssf.usermodel.XSSFRow;
 import org.apache.poi.xssf.usermodel.XSSFSheet;
diff --git a/src/main/java/io/github/dgroup/poi/row/package-info.java b/src/main/java/io/github/dgroup/xlsx/row/package-info.java
similarity index 97%
rename from src/main/java/io/github/dgroup/poi/row/package-info.java
rename to src/main/java/io/github/dgroup/xlsx/row/package-info.java
index c4ef6b1..150b216 100644
--- a/src/main/java/io/github/dgroup/poi/row/package-info.java
+++ b/src/main/java/io/github/dgroup/xlsx/row/package-info.java
@@ -27,4 +27,4 @@
  *
  * @since 0.1.0
  */
-package io.github.dgroup.poi.row;
+package io.github.dgroup.xlsx.row;
diff --git a/src/test/java/io/github/dgroup/poi/cell/HasCellsTest.java b/src/test/java/io/github/dgroup/xlsx/cell/HasCellsTest.java
similarity index 98%
rename from src/test/java/io/github/dgroup/poi/cell/HasCellsTest.java
rename to src/test/java/io/github/dgroup/xlsx/cell/HasCellsTest.java
index 601e228..59c9041 100644
--- a/src/test/java/io/github/dgroup/poi/cell/HasCellsTest.java
+++ b/src/test/java/io/github/dgroup/xlsx/cell/HasCellsTest.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import org.apache.poi.xssf.usermodel.XSSFCell;
 import org.apache.poi.xssf.usermodel.XSSFRow;
diff --git a/src/test/java/io/github/dgroup/poi/cell/IndexOfTest.java b/src/test/java/io/github/dgroup/xlsx/cell/IndexOfTest.java
similarity index 98%
rename from src/test/java/io/github/dgroup/poi/cell/IndexOfTest.java
rename to src/test/java/io/github/dgroup/xlsx/cell/IndexOfTest.java
index ac9aa2b..4f0c980 100644
--- a/src/test/java/io/github/dgroup/poi/cell/IndexOfTest.java
+++ b/src/test/java/io/github/dgroup/xlsx/cell/IndexOfTest.java
@@ -22,7 +22,7 @@
  * OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;
 
 import com.tngtech.java.junit.dataprovider.DataProvider;
 import com.tngtech.java.junit.dataprovider.DataProviderRunner;
diff --git a/src/test/java/io/github/dgroup/poi/cell/package-info.java b/src/test/java/io/github/dgroup/xlsx/cell/package-info.java
similarity index 91%
rename from src/test/java/io/github/dgroup/poi/cell/package-info.java
rename to src/test/java/io/github/dgroup/xlsx/cell/package-info.java
index c69ec85..2818a59 100644
--- a/src/test/java/io/github/dgroup/poi/cell/package-info.java
+++ b/src/test/java/io/github/dgroup/xlsx/cell/package-info.java
@@ -23,8 +23,8 @@
  */
 
 /**
- * Unit tests for the package {@link io.github.dgroup.poi.cell}.
+ * Unit tests for the package {@link io.github.dgroup.xlsx.cell}.
  *
  * @since 0.1.0
  */
-package io.github.dgroup.poi.cell;
+package io.github.dgroup.xlsx.cell;