Solution for Microsoft Office security notice
Depending on the settings in Microsoft Office, Microsoft may display the following warning when opening files from the Internet with the extension .xlsm.

All files on this website are always checked for viruses with virustotal. Virustotal uses the 63 most popular virus programmes to check for viruses.

If you would like to work with our files and Microsoft gives you the above advice, proceed as follows:
- Save the file
- Select the storage location (in the default folder „downloads“).
- Select file
- right mouse button
- A window appears. The last item in this window is „Properties“
- Select this item
- In the window that appears, tick the „Allow“ box (see below)
- Click on „Apply“ and then on „OK“
- You can then open the file and work with it.
