OpenXML - Table Creation, How do I create tables without requiring excel to repair them

Question

I'm creating multiple spreadsheets (separate files), each containing multiple sheets, and when I open the output file of one of these spreadsheets in excel it asks if I want to repair it (this only happens when I add tables), and shows what was repaired:

Repaired Records: Table from /xl/tables/table1.xml part (Table)

After repairing, the file is in the correct format, but as this is being automated I can't reply on using excel to repair these files. It only causes this problem when I create a table.

For example: I call the Define Table method using the following parameters to create a table of 11 Rows (Rows 2-12 inclusive) and 8 Columns (1-8 inclusive):

DefineTable(worksheetPart, 2, 12, 1, 8);

The DefineTable method is shown below:

private static void DefineTable(WorksheetPart worksheetPart, int rowMin, int rowMax, int colMin, int colMax)
    {
        TableDefinitionPart tableDefinitionPart = worksheetPart.AddNewPart<TableDefinitionPart>("rId" + (worksheetPart.TableDefinitionParts.Count() + 1));
        int tableNo = worksheetPart.TableDefinitionParts.Count();

        string reference = ((char)(64 + colMin)).ToString() + rowMin + ":" + ((char)(64 + colMax)).ToString() + rowMax;

        Table table = new Table() { Id = (UInt32)tableNo, Name = "Table" + tableNo, DisplayName = "Table" + tableNo, Reference = reference, TotalsRowShown = false };
        AutoFilter autoFilter = new AutoFilter() { Reference = reference };

        TableColumns tableColumns = new TableColumns() { Count = (UInt32)(colMax - colMin + 1) };
        for (int i = 0; i < (colMax - colMin + 1); i++)
        {
            tableColumns.Append(new TableColumn() { Id = (UInt32)(i + 1), Name = "Column" + i });
        }

        TableStyleInfo tableStyleInfo = new TableStyleInfo() { Name = "TableStyleLight1", ShowFirstColumn = false, ShowLastColumn = false, ShowRowStripes = true, ShowColumnStripes = false };

        table.Append(autoFilter);
        table.Append(tableColumns);
        table.Append(tableStyleInfo);

        tableDefinitionPart.Table = table;

        TableParts tableParts = new TableParts() { Count = (UInt32)1 };
        TablePart tablePart = new TablePart() { Id = "rId" + tableNo };

        tableParts.Append(tablePart);

        worksheetPart.Worksheet.Append(tableParts);
    }

I'm not sure why the table is being constructed incorrectly, I would appreciate any help I can get to fix this.

I will also include table1.xml before and after being repaired: table1.xml Before Repair:

<?xml version="1.0" encoding="utf-8" ?>
<x:table id="1" name="Table1" displayName="Table1" ref="A2:H12" 
totalsRowShown="0" 
xmlns:x="http://schemas.openxmlformats.org/spreadsheetml/2006/main">
 <x:autoFilter ref="A2:H12"/>
 <x:tableColumns count="8">
  <x:tableColumn id="1" name="Column0"/>
  <x:tableColumn id="2" name="Column1"/>
  <x:tableColumn id="3" name="Column2"/>
  <x:tableColumn id="4" name="Column3"/>
  <x:tableColumn id="5" name="Column4"/>
  <x:tableColumn id="6" name="Column5"/>
  <x:tableColumn id="7" name="Column6"/>
  <x:tableColumn id="8" name="Column7"/>
 </x:tableColumns>
 <x:tableStyleInfo name="TableStyleLight1" showFirstColumn="0" 
showLastColumn="0" showRowStripes="1" showColumnStripes="0"/>
</x:table>

table1.xml After Repair:

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<table xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" 
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
xmlns:xr="http://schemas.microsoft.com/office/spreadsheetml/2014/revision" 
xmlns:xr3="http://schemas.microsoft.com/office/spreadsheetml/2016/revision3" 
mc:Ignorable="xr xr3" xr:uid="{00000000-000C-0000-FFFF-FFFF00000000}" id="1" 
name="Table1" displayName="Table1" ref="A2:H12" totalsRowShown="0">
 <autoFilter xr:uid="{00000000-0009-0000-0100-000001000000}" ref="A2:H12"/>
 <tableColumns count="8">
  <tableColumn xr3:uid="{00000000-0010-0000-0000-000001000000}" id="1" 
name="Column0"/>
  <tableColumn xr3:uid="{00000000-0010-0000-0000-000002000000}" id="2" 
name="Column1"/>
  <tableColumn xr3:uid="{00000000-0010-0000-0000-000003000000}" id="3" 
name="Column2"/>
  <tableColumn xr3:uid="{00000000-0010-0000-0000-000004000000}" id="4" 
name="Column3"/>
  <tableColumn xr3:uid="{00000000-0010-0000-0000-000005000000}" id="5" 
name="Column4"/>
  <tableColumn xr3:uid="{00000000-0010-0000-0000-000006000000}" id="6" 
name="Column5"/>
  <tableColumn xr3:uid="{00000000-0010-0000-0000-000007000000}" id="7" 
name="Column6"/>
  <tableColumn xr3:uid="{00000000-0010-0000-0000-000008000000}" id="8" 
name="Column7"/>
 </tableColumns>
 <tableStyleInfo name="TableStyleLight1" showFirstColumn="0" 
showLastColumn="0" showRowStripes="1" showColumnStripes="0"/>
</table>

Thanks in advance.

Answer 1

I fought with this same issue for several days. I was dynamically creating an Excel spreadsheet using Open XML. It all worked fine until I tried adding a table. Once I did that I kept getting the warning when opening the spreadsheet about it needing repair.

I finally fixed the problem by adding the column heading text to the spreadsheet data. For example if I had a table on cells A1:C7 with 2 columns defined (names of "Column1" and "Column2"), along with adding the table and columns, I also added the text "Column1" to cell A1 and "Column2" to cell B1.