I would like to report an issue with Office 365 - Excel.
If you select more than six worksheets (using the ctrl key) and then print using "Microsoft Print to PDF" then the a few lines of text will get randomly pasted throughout worksheets. Due to the random nature and low amount random text pasted it can be difficult to spot. This has been happening to me for the last few years (Office 2016 also) and I only recently realised what was happening.
Any remedy to prevent this within the software would be appreciated. My current workaround is to create a new file version when printing and then delete it.