So far all the instructions to read and save files in excel have worked well with unigui all versions from 1.0 to 1.90, in windows server 2016 and office 2016 32bits.
Now with windows server 2019 and office 2016 or office 2019 with 32 o 64 bits, it gives me an error when i try to read o save an excel file, ti says that the file is busy or does not exist. Anyone knows what can it be?