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Add check for invalid formulas #242

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Add check for invalid formulas #242

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6 changes: 5 additions & 1 deletion xlsx2csv.py
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Original file line number Diff line number Diff line change
Expand Up @@ -130,6 +130,8 @@
DEFAULT_APP_PATH = "/xl"
DEFAULT_WORKBOOK_PATH = DEFAULT_APP_PATH + "/workbook.xml"

INVALID_VALUES = ('#N/A', '#VALUE!')

class XlsxException(Exception):
pass

Expand Down Expand Up @@ -828,7 +830,9 @@ def handleCharData(self, data):

if format_type and not format_type in self.ignore_formats:
try:
if format_type == 'date': # date/time
if self.data in INVALID_VALUES:
self.data = None
elif format_type == 'date': # date/time
if self.workbook.date1904:
date = datetime.datetime(1904, 1, 1) + datetime.timedelta(float(self.data))
else:
Expand Down