File type | Microsoft Visual Studio |
Developer | Microsoft Corporation |
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VSTO filename extension is associated with Microsoft Visual Studio software package. VSTO files store data for Microsoft Visual Studio for Office runtime.
VSTO files allow developers to create extensions for Microsoft Office. Office plugins can be written using various programming languages, such as C# or F#. VSTO files cannot be converted to other formats and should not be manually deleted from the system.
If you cannot open the VSTO file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports VSTO among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the VSTO file can be found in the table. Now just download and install the appropriate application.
The inability to open and operate the VSTO file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the Microsoft Visual Studio file. Below is a list of possible problems.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the VSTO file should operate with your programs without any problem. If the problem with the VSTO file has not been solved, it may be due to the fact that in this case there is also another rare problem with the VSTO file. In this case, the only you can do is to ask for assistance of a professional staff.
If you want to associate a file with a new program (e.g. my-file.VSTO) you have two ways to do it. The first and the easiest one is to right-click on the selected VSTO file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the VSTO file extension to the corresponding software in the Windows Registry.
Many files contain only simple text data. It is possible that while opening unknown files (e.g. VSTO) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.