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Excel VSTO

Ready to take your Excel experience to the next level? With VSTO (Visual Studio Tools for Office), the possibilities are endless! Discover insider tips and tricks to supercharge your add-in development, unleash your creativity, and transform your favorite Office applications into productivity powerhouses.

A When you have created a VSTO application and the tab in the ribbon is not visible, this can have multiple causes, please read more in the blog Why is my Add-in not visible in the Ribbon.

Typically, this error is caused by a corrupted Excel workbook, often due to problematic VBA code saved within it. In order to resolve this issue, you need to force a recompilation of the VBA project. One method is to add a new reference in the Visual Basic Editor (VBE), then save, close, and reopen the workbook. If this resolves the issue, you can usually remove the reference you added and save the workbook again.

To access the Visual Basic Editor, you can either use the menu options (1) and (2) or alternatively, press <ALT> + <F11>.

Solution 1

  1. Open the Visual Basic Editor.
  2. Go to Tools > References.
  3. Check the box for “AccessibilityCplAdmin 1.0 Type Library” or any other unchecked library, then click OK and close the VBE.
  4. Save the workbook and restart Excel.

Solution 2

Essentially, the solution requires forcing a recompilation of the VBA project. For instance, you can start by adding a new reference through Tools > References in the Visual Basic Editor. Afterward, save, close, and reopen the workbook. If this resolves the issue, you can typically remove the reference you added and save the workbook again.

    Excel VBA

    Calling all Excel wizards-in-training! Get ready to wield the magic of VBA (Visual Basic for Applications) and unlock the secrets hidden within your spreadsheets. From automating repetitive tasks to crafting custom solutions, dive into our treasure trove of tips and tricks to become the master of macros and the champion of coding!

    Syntax Errors
    They occur when the VBA code is not written correctly according to the syntax rules of the language. For example: Missing a parenthesis, misspelled keywords.

    Sub Example_SyntaxError
	If x = 10 Then
		MsgBox "x is 10"
End Sub

    Runtime Errors
    They occur while the code is running, often due to invalid operations or unexpected conditions. For example: Division by Zero; Attempting to divide a number by zero or File Not Found;Trying to open a file that does not exist.

    Sub Example_RuntimeError
	 Dim result As Double
	  result = 100 / 0 ' This will throw an error
End Sub

    Type Mismatch
    They occur when you’re trying to assign a value to a variable that is not compatible with its data type. For example: Assigning a string to an integer variable.

    Sub Example_TypeMismatch
	 Dim result As Integer
     result = "Hello" ' This will throw an error
End Sub

    Object Required
    They occur when trying to use an object that hasn’t been set or is missing. For example: Attempting to use an object that hasn’t been instantiated.

    Sub Example_ObjectRequired
      Dim ws As Worksheet
       ws.Range("A1").Value = "Hello" ' The worksheet object is not set, Add: Set ws = ThisWorkbook.Sheets("Sheet1")
End Sub

    Subscript Out of Range
    They occur when attempting to access an element of a collection or array using an index that does not exist. For example: Accessing a non-existent element in an array or worksheet.

    Sub Example_SubscriptOutofRange
	 Sheets("NonExistentSheet").Activate  'Sheet does not exist
End Sub

    Overflow Error
    They occur when a calculation results in a number that is too large or too small for the data type. For example: Storing a number that exceeds the limits of an integer variable.

    Sub Example_OverflowError
	Dim largeNumber As Integer
     largeNumber = 50000 * 50000 ' Exceeds the limit for Integer
End Sub

    FAQ

    Got questions? We’ve got answers! We understand that navigating through our Excel application services might raise a few queries along the way. No worries, we’re here to make things crystal clear for you. Check out our frequently asked questions below, and if you don’t find what you’re looking for, don’t hesitate to reach out to us. We’re always just a click or a call away.

    Great question! We’re the Excel magicians you’ve been looking for. We craft customized solutions, transform complex spreadsheets, and help you make the most of Excel’s potential. If you’ve got a data dilemma, we’ve got the answer.

    A: It’s super easy! Just head over to our “Services” page to explore what we offer. Once you find something that piques your interest, click the “Get Started” button, and we’ll guide you through the rest.

    We believe in transparency. Our pricing is tailored to your needs and the scope of the project. While we’re not the cheapest in town, we promise value and quality that’s worth every penny. Feel free to reach out for a personalized quote.

    Ah, the million-dollar question! The timeline can vary based on the complexity of your project. We’re committed to efficiency without compromising quality. Rest assured, we won’t keep you waiting longer than necessary.

    Absolutely! We’re not a hit-and-run kind of team. We’re here for you, even after the project is done. If you have questions, need adjustments, or just want to chat Excel, we’re just a message away.

    Our add-ins work in Excel 2010 to Excel 2019 (32 bit and 64 bit). We usually support Windows 8, Windows 8.1 and the latest version of Windows 10 and Windows 11 (both 32 bit and 64 bit).

    Most of our Microsoft Excel add-ins are written in VSTO and are COM add-ins, but ofcourse  we can also create VBA applications for you.

    Can’t find your question here?

    No worries! We love hearing from you. Reach out through our “Contact” page, and we’ll get back to you faster than a formula in Excel. Your queries are our top priority!

    Thank you for choosing MyExcelDeveloper for your Excel needs. We’re here to make your Excel journey as smooth as a well-crafted formula.