On Sharepoint Online, I have a document library with a custom content type on which I have an excel template file. When I create a new file in the browser, Sharepoint asked to modify a copy and to name it. I can modify it and it is automatically saved.
When I go back to the library, it created the file I wanted, say MyExcel.xlsx, but it also created an empty excel file based on my template, named Classeur.xlsx (its french for spreadsheet, since my SPO is in French).
I have tested with a new document library, using the content type Documents and a different excel file as template. The result is the same.
How come that this empty file is created ? Thanks in advance!