diff --git a/tests/data/19_defined_names/[Content_Types].xml b/tests/data/19_defined_names/[Content_Types].xml
deleted file mode 100644
index 5e87d065..00000000
--- a/tests/data/19_defined_names/[Content_Types].xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
\ No newline at end of file
diff --git a/tests/data/19_defined_names/_rels/.rels b/tests/data/19_defined_names/_rels/.rels
deleted file mode 100644
index 74bfd8d9..00000000
--- a/tests/data/19_defined_names/_rels/.rels
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
\ No newline at end of file
diff --git a/tests/data/19_defined_names/docProps/app.xml b/tests/data/19_defined_names/docProps/app.xml
deleted file mode 100644
index e4faba6b..00000000
--- a/tests/data/19_defined_names/docProps/app.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-Microsoft Macintosh Excel0falseWorksheets3Named Ranges5Sheet1Sheet2Sheet3Sheet2!Print_AreaSheet3!Print_AreaSheet1!Print_TitlesSheet2!Print_TitlesSheet3!Print_Titlesfalsefalsefalse16.0300
\ No newline at end of file
diff --git a/tests/data/19_defined_names/docProps/core.xml b/tests/data/19_defined_names/docProps/core.xml
deleted file mode 100644
index 4ec5de85..00000000
--- a/tests/data/19_defined_names/docProps/core.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-Microsoft Office UserMicrosoft Office User2016-08-12T03:16:56Z2022-08-21T15:08:32Z
\ No newline at end of file
diff --git a/tests/data/19_defined_names/xl/_rels/workbook.xml.rels b/tests/data/19_defined_names/xl/_rels/workbook.xml.rels
deleted file mode 100644
index aa26daa1..00000000
--- a/tests/data/19_defined_names/xl/_rels/workbook.xml.rels
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
\ No newline at end of file
diff --git a/tests/data/19_defined_names/xl/styles.xml b/tests/data/19_defined_names/xl/styles.xml
deleted file mode 100644
index 886c08e4..00000000
--- a/tests/data/19_defined_names/xl/styles.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
\ No newline at end of file
diff --git a/tests/data/19_defined_names/xl/theme/theme1.xml b/tests/data/19_defined_names/xl/theme/theme1.xml
deleted file mode 100644
index 223349fa..00000000
--- a/tests/data/19_defined_names/xl/theme/theme1.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
\ No newline at end of file
diff --git a/tests/data/19_defined_names/xl/workbook.xml b/tests/data/19_defined_names/xl/workbook.xml
deleted file mode 100644
index c3789ef0..00000000
--- a/tests/data/19_defined_names/xl/workbook.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-Sheet1!$A$1:$A$6Sheet2!$B$4Sheet3!$B$2:$E$4Sheet1!$1:$3Sheet2!$A:$DSheet3!$B:$E,Sheet3!$2:$4
\ No newline at end of file
diff --git a/tests/data/19_defined_names/xl/worksheets/sheet1.xml b/tests/data/19_defined_names/xl/worksheets/sheet1.xml
deleted file mode 100644
index 62fcb11b..00000000
--- a/tests/data/19_defined_names/xl/worksheets/sheet1.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-1
2
3
4
5
6
\ No newline at end of file
diff --git a/tests/data/19_defined_names/xl/worksheets/sheet2.xml b/tests/data/19_defined_names/xl/worksheets/sheet2.xml
deleted file mode 100644
index bbda9ddf..00000000
--- a/tests/data/19_defined_names/xl/worksheets/sheet2.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
\ No newline at end of file
diff --git a/tests/data/19_defined_names/xl/worksheets/sheet3.xml b/tests/data/19_defined_names/xl/worksheets/sheet3.xml
deleted file mode 100644
index bc162911..00000000
--- a/tests/data/19_defined_names/xl/worksheets/sheet3.xml
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
\ No newline at end of file
diff --git a/tests/stream-out.xlsx b/tests/stream-out.xlsx
deleted file mode 100644
index 20fb3061..00000000
Binary files a/tests/stream-out.xlsx and /dev/null differ
diff --git a/tests/temp.xlsx b/tests/temp.xlsx
deleted file mode 100644
index d8406e4c..00000000
Binary files a/tests/temp.xlsx and /dev/null differ
diff --git a/tests/temp10_comments_hyperlinks_formulae.xlsx b/tests/temp10_comments_hyperlinks_formulae.xlsx
deleted file mode 100644
index d2a22b5e..00000000
Binary files a/tests/temp10_comments_hyperlinks_formulae.xlsx and /dev/null differ
diff --git a/tests/temp11_print_settings.xlsx b/tests/temp11_print_settings.xlsx
deleted file mode 100644
index 2d0d2536..00000000
Binary files a/tests/temp11_print_settings.xlsx and /dev/null differ
diff --git a/tests/temp12_advanced_properties.xlsx b/tests/temp12_advanced_properties.xlsx
deleted file mode 100644
index 93995f2e..00000000
Binary files a/tests/temp12_advanced_properties.xlsx and /dev/null differ
diff --git a/tests/temp13_custom_heights_widths.xlsx b/tests/temp13_custom_heights_widths.xlsx
deleted file mode 100644
index b2e12c0c..00000000
Binary files a/tests/temp13_custom_heights_widths.xlsx and /dev/null differ
diff --git a/tests/temp19_defined_names.xlsx b/tests/temp19_defined_names.xlsx
deleted file mode 100644
index bfa70fbf..00000000
Binary files a/tests/temp19_defined_names.xlsx and /dev/null differ
diff --git a/tests/temp2_minimal.xlsx b/tests/temp2_minimal.xlsx
deleted file mode 100644
index bbfff6f4..00000000
Binary files a/tests/temp2_minimal.xlsx and /dev/null differ
diff --git a/tests/temp3_default.xlsx b/tests/temp3_default.xlsx
deleted file mode 100644
index 2a964e98..00000000
Binary files a/tests/temp3_default.xlsx and /dev/null differ
diff --git a/tests/temp4_every_style.xlsx b/tests/temp4_every_style.xlsx
deleted file mode 100644
index 0430e1da..00000000
Binary files a/tests/temp4_every_style.xlsx and /dev/null differ
diff --git a/tests/temp9_unicode_Λ_😇.xlsx b/tests/temp9_unicode_Λ_😇.xlsx
deleted file mode 100644
index ad395dde..00000000
Binary files a/tests/temp9_unicode_Λ_😇.xlsx and /dev/null differ
diff --git a/tests/temp_issue353.xlsx b/tests/temp_issue353.xlsx
deleted file mode 100644
index d4912253..00000000
Binary files a/tests/temp_issue353.xlsx and /dev/null differ
diff --git a/tests/temp_with_images.xlsx b/tests/temp_with_images.xlsx
deleted file mode 100644
index b2b68955..00000000
Binary files a/tests/temp_with_images.xlsx and /dev/null differ
diff --git a/tests/titles1.xlsx b/tests/titles1.xlsx
deleted file mode 100644
index 99ea454f..00000000
Binary files a/tests/titles1.xlsx and /dev/null differ