Excel sheets' contents are being wiped out
I'm trying to clean the metadata from Excel files in Ubuntu 20 with Mat2 0.12.3, but the cleaned resulting files have not only the metadata but also the content of the sheets wiped out. If it's a three sheets excel, the three sheets will remain but they will be just empty.
I've tried also with the --lightweight tag but it didn't help. The --check-dependencies tag confirms everything is installed, including optional dependencies. --verbose doesn't give any info. It apparently creates successfully the .cleaned.xlsx file, but the data is gone. Always trying from console.
The weird thing is, that judging by the size of the metadata-wiped results, the data should be there. E.G. (with --lightweight), a 28kB .xlsx returns a 19kB .cleaned.xlsx. A 14kB one turns into 12kB cleaned.
I've also tried to save this cleaned XLSX files to a CSV to see if the data emerged but just got empty CSVs.