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Forum Discussion
Issue with Excel - "Excel file format is not valid"
Excel file format is not valid. Please help as unable to open Excel.
I think I found the solution.
If you disable the office dropbox add-in the problem doesn't seem to occur anymore. You can still save to dropbox via file explorer making it redundant anyhow.
to do this, open excel, go under file, Choose "Options", and navigate to "add-ins".
From there locate the Dropbox Add-in and right click, select "disable".
Should stop it from being an issue.
Rich
Super User II
Super User IIYou need to provide more information about the problem you're having. Are you opening Excel files from the Dropbox folder on your desktop, or the Dropbox website? Does the problem only occur with files in your Dropbox folder, or elsewhere on your computer as well? Have you dragged one of the problem files out of your Dropbox to your desktop and tried to open it from there? Mac or PC? Office version? etc.
I think I found the solution.
If you disable the office dropbox add-in the problem doesn't seem to occur anymore. You can still save to dropbox via file explorer making it redundant anyhow.
to do this, open excel, go under file, Choose "Options", and navigate to "add-ins".
From there locate the Dropbox Add-in and right click, select "disable".
Should stop it from being an issue.
I have been using my dropbox account for a few years with no issues. Recently, when I was saving a file (which Iregularly use) a message popped up saying I needed to "grant access" to save the file to the location. It was a random message that had never come up before but I granted access and was able to proceed. This has appeared a few times for different files since then.
Now my lastest issue is that it won't let me open a file. The error message states:
"Excel cannot open the file 'George Cycle 2.xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file."
I use these files regularly and this has just come out of the blue.
All ideas as to why this has started happening would be great!!
Thanks!
