File Extension Library

.VSTO File Extension

  • Developer by: Microsoft Corporation
  • Category: Various data Files

What is an .VSTO file?

.VSTO file extension is created by Microsoft Corporation. .VSTO has been classified as Various data Files.

.VSTO is Microsoft Visual Studio data

The vsto file extension is associated with Microsoft Visual Studio integrated development environment that allows programmers to create applications for Windows, .NET framework, internet applications etc.

The vsto file stores data for Microsoft Visual Studio Tools for Office runtime (VSTO abbreviation) used to create extensions for Microsoft Office.

Mime types:

How to open:

Probably not meant to be accessed by the user.

How to convert:

The *.vsto file type cannot be converted to other file formats.

How to Open .VSTO file on different platforms

Open .VSTO File on Windows

  • Right-click a .VSTO
  • Left-click "Open With" > "Choose another app"
  • Select the program that opens .VSTO file and Select check box "Always use this app to open .VSTO files" Press "Ok"

Open .VSTO File on Mac

  • Right-click (or Ctrl + Left-click) the .VSTO file
  • Click "Open With" > "Other.."
  • Then choose another program from the app list and press "Open"
  • Select check box "Turn on" for "Always open in app"

Open .VSTO File on Linux

Right click on the .VSTO file, choose "Open with" and select a program from the list above

Open .VSTO File on iPhone

Select a file. If you don't see an application to open the .VSTO file, tap "Share" and choose the right app.
Method 2
Save the file. Then open the app «Files». Touch and hold the file, then release your finger. You will see a black menu bar. After that tap "Share" and select an application.

Open .VSTO File on Android

Tap the Settings icon on an Android smartphone, then select «Applications». Click the Settings icon in the upper right corner of the screen, to change the default apps.
If you want to open, edit, save or even convert .VSTO files on Android, then your best bet is to download one of the dedicated apps available on Google Play.

How to fix problems with .VSTO files

  1. You need to update the application that you normally use to open .VSTO files. Only the latest version of the software supports the current .VSTO file format
  2. You need to check the .VSTO file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)