Marked as 'AdvertsingProfitControl 0.9.5.2' by its folder. I believe this version is where most of the main interface for the user was complete and I was toying with the idea of allowing the user to change the shrink on the main form.

AdvertsingProfitControl/RowParsing.cs

@@ -8,20 +8,21 @@ namespace AdvertsingProfitControl
 {
     internal class RowParsing
     {
-        public static List<string> _adSpecialGroups = new List<string>();
+        public static List<string> AdSpecialGroups = new List<string>();
 
         public string CheckForGroupKeyWord(string cellContents)
         {
             var keyWord = "NoGroupFound";
 
-            var query = from adI in _adSpecialGroups
+            var query = from adI in AdSpecialGroups
                         where adI.Equals(cellContents, StringComparison.InvariantCultureIgnoreCase)
                         select adI;
 
-            if (query.ToArray().Length > 0)
+            var enumerable = query as string[] ?? query.ToArray();
+            if (enumerable.ToArray().Length > 0)
             {
                 //Grab the first object in the array and return it.
-                keyWord = query.ToArray().First();
+                keyWord = enumerable.ToArray().First();
             }
 
             return keyWord;
@@ -50,6 +51,7 @@ namespace AdvertsingProfitControl
             var i = 0;
             foreach (DataGridViewCell cell in row.Cells)
             {
+                if (cell.ColumnIndex >= (int) SalesTableColumns.IsHeaderRow) { i++; continue;}
                 //Strip all whitespace characters from the cell, this includes vertical tabs, newlines, and any number of spaces.
                 var cellContentsStripped = new string(cell.EditedFormattedValue.ToString().Where(c => !char.IsWhiteSpace(c)).ToArray());
                 //Now remove all zeros, including any decimal points as these values are meaningless.
@@ -60,7 +62,7 @@ namespace AdvertsingProfitControl
                     rowContents.Add(cell.EditedFormattedValue.ToString());
                 }
                 //If the first cell contains nothing, then return as IncompleteRow.
-                else if (cellContentsStripped == "" && i == 0)
+                else if (cellContentsStripped == "" && i == (int) SalesTableColumns.AdItem)
                 {
                     return RowAttribute.IncompleteRow;
                 }