diff --git a/src/SparseTransform/Convert/ColoredDotWriter.cs b/src/SparseTransform/Convert/ColoredDotWriter.cs
index afb7dea2d7418379014fa8f81c5a95e80e16e28e..89b58034f91b9843a58ad17f92ec19a8196e0ba5 100644
--- a/src/SparseTransform/Convert/ColoredDotWriter.cs
+++ b/src/SparseTransform/Convert/ColoredDotWriter.cs
@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using DataStructures;
+using DataStructures;
 
 namespace SparseTransform.Convert
 {
diff --git a/src/SparseTransform/Convert/DotWriter.cs b/src/SparseTransform/Convert/DotWriter.cs
index 58ac50c4c72b9e873aa58e120250005b1763a351..2b266c367fa5174fda4fb497c3b87818454b93b8 100644
--- a/src/SparseTransform/Convert/DotWriter.cs
+++ b/src/SparseTransform/Convert/DotWriter.cs
@@ -1,10 +1,4 @@
-using System;
-using System.Collections;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Xml.Linq;
+using System.Text;
 using DataStructures;
 
 namespace SparseTransform.Convert
diff --git a/src/SparseTransform/Convert/ErrorListener.cs b/src/SparseTransform/Convert/ErrorListener.cs
index 4fd6daf279e10030ec2edc4f82e752d16eb70bfa..8485a07e6f24b3e5698b0fceb6679ac9bee020a3 100644
--- a/src/SparseTransform/Convert/ErrorListener.cs
+++ b/src/SparseTransform/Convert/ErrorListener.cs
@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Antlr4.Runtime;
+using Antlr4.Runtime;
 using Antlr4.Runtime.Misc;
 
 namespace Transform.Convert
diff --git a/src/SparseTransform/Convert/IReader.cs b/src/SparseTransform/Convert/IReader.cs
index ca1eacae5323f91026efa41dbe27634fc9fc9942..fed22d681d0ca7fb0e3129bd9668b3d384d51eae 100644
--- a/src/SparseTransform/Convert/IReader.cs
+++ b/src/SparseTransform/Convert/IReader.cs
@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using DataStructures;
+using DataStructures;
 
 
 namespace SparseTransform.Convert
diff --git a/src/SparseTransform/Convert/IWriter.cs b/src/SparseTransform/Convert/IWriter.cs
index 858d803f154ff86c0ca4dca800c7a2451523342a..12ba16ec36392dad4f86c795ac49f6fe932b8c4e 100644
--- a/src/SparseTransform/Convert/IWriter.cs
+++ b/src/SparseTransform/Convert/IWriter.cs
@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using DataStructures;
+using DataStructures;
 
 namespace SparseTransform.Convert
 {
diff --git a/src/SparseTransform/Convert/MatrixMarketReader.cs b/src/SparseTransform/Convert/MatrixMarketReader.cs
index ee16ecc747897526087cbdf4444c0597a8657af7..f1969034d1fa081d6e3e90863952a0d54b8325a7 100644
--- a/src/SparseTransform/Convert/MatrixMarketReader.cs
+++ b/src/SparseTransform/Convert/MatrixMarketReader.cs
@@ -1,17 +1,6 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Linq;
-using System.Reflection;
-using System.Reflection.PortableExecutable;
-using System.Text;
-using System.Threading.Tasks;
-using Antlr4.Runtime;
+using Antlr4.Runtime;
 using DataStructures;
-using Transform;
 using Transform.Convert;
-using System.Text.RegularExpressions;
-
 
 namespace SparseTransform.Convert
 {
diff --git a/src/SparseTransform/Convert/MatrixMarketWriter.cs b/src/SparseTransform/Convert/MatrixMarketWriter.cs
index 54f7456164cde246d14e68166bbf786c7198f44f..1a110af0f1d6c80104770adc616ecb246dddd71f 100644
--- a/src/SparseTransform/Convert/MatrixMarketWriter.cs
+++ b/src/SparseTransform/Convert/MatrixMarketWriter.cs
@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using DataStructures;
+using DataStructures;
 
 namespace SparseTransform.Convert
 {
diff --git a/src/SparseTransform/Convert/VisitorHeader.cs b/src/SparseTransform/Convert/VisitorHeader.cs
index 2f77a28df985acc7a6aefcef84481e388af8f219..1032e898fc2b10bbce6a004bd8990b7cd59e9e58 100644
--- a/src/SparseTransform/Convert/VisitorHeader.cs
+++ b/src/SparseTransform/Convert/VisitorHeader.cs
@@ -1,11 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using Antlr4.Runtime.Misc;
-using Antlr4.Runtime.Tree;
-using DataStructures;
+using Antlr4.Runtime.Misc;
 using SparseTransform.Convert;
 
 namespace Transform.Convert