Visio is opening two unrelated files at the same time.

Hi @JV

Please go to Visio, click File > Account > Product Information, check the version name.

I suggest you try following steps to have a check:

• Change the file save location
• Run Visio in Safe Mode first, then open one file to have a check. To run Visio in Safe Mode, please press and hold on Ctrl key, click or double-click Visio icon, until Viso asks do you want to start it in safe mode, then please release Ctrl key and click "Yes".
• You may refer to this thread: https://learn.microsoft.com/en-us/answers/questions/566962/i-only-want-1-visio-file-to-open, check whether it is helpful to you.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

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Hi @JV

Thaks for your back and kind sharing.

By the way, since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others.", and according to the scenario introduced here: Answering your own questions on Microsoft Q&A, I would make a brief summary of this thread:

Issue Symptom:

Visio opens two files despite clicking open on a single file.

For instance, double click File 'A' leads to opening both File 'A' and 'B'. These two files are for some reason affiliated with each other it seems.

Workaround:

Locating that file that was opening on its own in a separate folder and just deleting that file.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.