I have installed the latest TDM excel importer. I used to be able to click on any TDM file and it would open. I recently had a W10 or MS Office update (not sure what broke it) and now I have to open Excel (365) and go to the Add-ins tab to click on the TDM excel importer and choose the file that I want to open. Or most of the time the TDM excel importer is not showing up in the the Add-ins tab and I have to find an old TDM file that I have converted and saved as a .xlsx to find the TDM excel importer in the add-in tab so I can use it to open a different TDM file. Has anyone else experienced this or know how to fix this?