added View function and a txt file to test it

win_venv/files/input/test.txt

@@ -0,0 +1 @@
+test txt file

win_venv/main.py

@@ -16,14 +16,19 @@ def files(path):
             yield file
 
 class LibraryTableButtons(QWidget):
-    def __init__(self, parent=None):
+    def __init__(self, filename, parent=None):
         super(LibraryTableButtons,self).__init__(parent)
-        layout = QHBoxLayout()
 
+        def viewFile():
+            os.startfile(filePath + '\\' + filename)
+
+        layout = QHBoxLayout()
         layout.setContentsMargins(0,0,0,0)
         layout.setSpacing(0)
 
-        layout.addWidget(QPushButton('View'))
+        view_btn = QPushButton('View')
+        view_btn.clicked.connect(viewFile)
+        layout.addWidget(view_btn)
         layout.addWidget(QPushButton('Delete'))
 
         self.setLayout(layout)
@@ -48,14 +53,7 @@ class LibraryTable(QTableWidget):
         for index, date in enumerate(dates):
             self.setItem(index,0,date)
             self.setItem(index,1,names[index])
-            self.setCellWidget(index,2,LibraryTableButtons())
-
-        def handleButtonClicked(w):
-            button = qApp.focusWidget()
-            # or button = self.sender()
-            index = self.table.indexAt(button.pos())
-            if index.isValid():
-                print(index.row(), index.column())
+            self.setCellWidget(index,2,LibraryTableButtons(names[index].text()))
 
     
 def main():