[v1.8.2] CompDocError - opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/xlrd/compdoc.py:426

OpenNumismat: 1.8.2
OS: Darwin 19.4.0 (Darwin Kernel Version 19.4.0: Sun Feb 9 22:12:38 PST 2020; root:xnu-6153.100.196~21/RELEASE_X86_64)
Python: 3.6.4 (64bit)
Qt: 5.9.2
Locale: en

Traceback (most recent call last):
File "Users/robert/open-numismat/OpenNumismat/MainWindow.py", line 644, in importExcel
File "Users/robert/open-numismat/OpenNumismat/Collection/Import/__init__.py", line 127, in importData
File "Users/robert/open-numismat/OpenNumismat/Collection/Import/Excel.py", line 128, in _connect
File "opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/xlrd/__init__.py", line 162, in open_workbook
File "opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/xlrd/book.py", line 87, in open_workbook_xls
File "opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/xlrd/book.py", line 633, in biff2_8_load
File "opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/xlrd/compdoc.py", line 398, in locate_named_stream
File "opt/local/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/site-packages/xlrd/compdoc.py", line 426, in _locate_stream
xlrd.compdoc.CompDocError: Workbook corruption: seen[3] == 4