I was just introduced to VBA. However, on saving my first excel file with VBA code, with .xlsm extension (I was advised to do so), and then reopening that saved file, I realized that all the VBA code had disappeared and the cells in which I had used the user-defined functions threw errors. Saving the workbook as .xlsx instead of .xlsm also didn't help. When I tried saving the VBA module, it showed that FUNCRES.XLAM is read-only and hence cannot be modified, and so try saving it at a different location. Doing so, saved an excel file which on opening showed a pop-up message that it's corrupt so can't be opened. Then I gave all permissions to FUNCRES.XLAM and it is NOT read-only. But the problem still prevailed. What should I do? Can someone please help me?
PS: It is Windows 10, Office 2016.
