I appreciate you coming to the Community for assistance, @FCL82. Let me share information about exporting project expenses to Excel without the added taxes. 

Currently, we're unable to customize a report to remove the taxes added to the expenses. For now, you'll have to manually take them off from the Excel file after exporting.

Here's how:

1. Go to Projects and select the specific project.
2. Click the Overview tab.
3. Select the amount in the Expense section. It will open the Transaction report of all project expenses.
4. Click Customize and select Change columns.
5. Check the boxes for Tax Amount and Taxable Amount, and select Run report.
6. Click the export icon dropdown and press Export to Excel. It will automatically download the Excel file, and you'll have to remove the taxes manually from there.

After setting up projects, you may invoice customers for specific project-related expenses, including timesheets. This way, they can reimburse you for the costs you incur on their behalf when you perform work for them.

Feel free to get back to us anytime whenever you have additional concerns about managing your projects. I'll ensure to respond right away to your questions. Take care, and have a good day!