Attached is the list of files that are used to run the BacklogReport file.
I've been running the file in xls format, but recently the filesize increased immensely in one day( 800kb to 1.8mb) and it took forever to even open the file.

So converting the file to xlsm format seemed to have reduced the file size as well as the file loading time.

But today, when pressing update button in BacklogReport, it runs the macro but runs EXTREMELY slow.
It used to update reports within a minute but this one takes more than an hour.

Any help would be appreciated.

p.s) password is veronica

Thanks for your help