Microsoft Visual Studio
Microsoft Corporation
Misc Files
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10/26/2021
To edit VSTO file, we strongly recommend installing software that works with VSTO files. There are many tools known as VSTO Online Editors, but it is not certain that they operate in a way that keeps the data contained in the file safe.
Please note that not every program that supports VSTO will allow you to edit the file. If you want, you can learn more about the VSTO file extension.
This is definitely the surest way. Choose one of the programs that support the VSTO file extension, open your file and check the editing options. The most proven method is to download the installer from the developer's website. You will find links to the software developers' websites on the subpage of each program. Below you will find some examples of software programs that support the VSTO file (so it is very possible that they can edit files in VSTO format).
The full list of VSTO supporters
Most of the file formats are simply text format saved under a different extension - so you can open them e.g. with Windows Notepad However, such manual editing of the VSTO file or any other file may result in damage to the file. If you make inappropriate changes and save the file, it may happen that you do not reopen the VSTO file.. For this reason, try to use software created to edit VSTO files.
It seems that one of the software on the list must be able to edit the VSTO files. Use other options if you still haven't found a way to edit VSTO. Verified websites with the option to edit the file in the VSTO format below.
Free Online File Edit Service
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