online quickbooks fails to load spreadsheet data saved in .csv file format
Let me help you sort this out, @timo1.
When importing CSV file into QuickBooks, there is a specific file format to follow.
First, were you prompted with an error while trying to import the CSV file? This will enable me to look into the root cause as to why it didn't load.
In the meantime, here are the formatting restrictions that you'll need to check before importing the CSV file.
If your CSV file meets the do's and don'ts above, try importing it again. You can read through this article for more detailed steps: How to import bank transactions using Excel CSV files.
If the issue persists, let's perform the following troubleshooting steps to isolate this concern for possible browser-related:
Feel free to click the Reply button if you have other questions. I'm always here to help.