Install libolecf-utils by entering the following commands in the terminal:
sudo apt update sudo apt install libolecf-utils
OLE2 Compound File format access library -- Utilities
libolecf is a library to access the OLE 2 Compound File (OLECF) format. . This package contains tools to access data stored in OLECF files: olecfexport, olecfinfo, lecfmount.