Resolving ‘Invalid data format’ Error in Excel

Microsoft Excel allows you to implement VBA (Visual Basic for Applications) and develop custom solutions. In order to use VBA with Excel, you need to employ several language and terminology constructions that could interact with the application. While naming Visual Basic modules in a workbook, you should ensure that you follow naming conventions. Failing to do so might result into errors while opening the workbook. However, if you are encountering similar kind of behavior though the VBA modules have been properly named, the chances are that the workbook is corrupted. To restore such damaged workbooks, use your recent file backup available or  commercial Excel Repair tools available to scan and repair the damaged workbook.

As an instance, you might encounter “Invalid data format” error message while performing tasks like:

  • Opening or closing an Excel workbook
  • Running VBA macros
  • Removing a VBA module
  • Exporting a VBA module in editor
  • Trying to edit text in VBA module
  • Starting the Visual Basic Editor

Cause

The possible reasons for “Invalid data format”  error to occur are:

You have a used a VBA module that has been named as “Dir” or “dir”. These are the reserved names and should not be used to name any VBA module or else will give errors.
You are trying to open a damaged Excel workbook.

Solution

Try troubleshooting such errors by following these steps:

You cannot remove or rename Visual Basic module. So, to recover from such situations, you should open the workbook and copy all its contents to a new workbook with different name. You can then delete the affected workbook.

If incorrect module naming is not the issue, repair the damaged workbook. To do so, try opening the file with ‘Open and Repair’ feature. If it fails, you can use third-party Excel Recovery software. These are powerful excel repair applications that could make effective excel file repair using safe and advanced scanning algorithms. Such tools provide you interactive user interface and so, no prior technical knowledge is required.

Stellar Phoenix Excel Recovery is a fully-competent file repair application for Excel 2007, 2003, 2002 and 2000. It is a non-destructive repair excel software with graphically rich user interface and powerful repair features. The software can recover objects like macros, tables, images, hyperlinks and others. It is compatible with Windows Vista, XP, 2003, 2000 and NT.

DDE Connection to Microsoft Excel Fails

Dynamic Data Exchange (DDE) is a Windows tool that allows you to set up a communication among different applications. You can use DDE for linking cells of a Microsoft Excel workbook to different values of some other application (for example, Microsoft Word). Thus, when you will change a value in linked application file, it will be automatically reflected in Microsoft Excel workbook. At times, when you cannot successfully link to an Excel workbook, one of prime causes responsible for this behavior could be that the file is corrupted. You get errors explaining that DDE could not perform the specific task while connecting to Microsoft Excel. Thus, to reuse such damaged Excel workbook, you will need to use your recent file backup or scan it by using advanced Excel Repair applications.

As an example, when you use Dynamic Data Exchange to attach an Excel workbook to be used as a mail-merge data source in Microsoft Word and specify a cell range, you might encounter the below error message:

“Word could not re-establish a DDE connection to Microsoft Excel to complete the current task.”

Mail-merge is Microsoft Word feature, using which you can create multiple documents with almost identical but with some unique information. An Excel workbook is usually used as a data source if contains the unique information to be included in documents.

Cause

Word might fail to connect to Excel workbook due to any of the possible reasons:

You have selected the Ignore Other Applications check box in Microsoft Excel
You are using a colon to specify the cell range
Excel workbook is damaged or corrupted

Solution

To successfully connect to the Excel workbook, you need to use these methods:

Make sure that the Ignore Other Applications check box is cleared. Locate the option by clicking Tools->Options and then General tab.
You can also use Excel Converter to link to Excel Spreadsheet
You need to use RxCx (row and column cell range) to specify the cell range
If Excel workbook is corrupted, repair it by using powerful excel repair applications. Excel Recovery software perform safe file repair using advanced scanning techniques. Such utilities come available with self-explanatory interface to work with.

Stellar Phoenix Excel Recovery is a comprehensive file repair product to repair and restore damaged Excel workbooks. It supports safe xls repair for files created with Excel 2007, 2003, 2002 and 2000. The application restores all file objects including hyperlinks, charts, macros, tables, images and more. It is a non-destructive tool that is compatible with Windows Vista, XP, 2003, 2000 and NT.