New Post: Input string was not in a correct format when reading cell value

Hi,
Gettting "Input string was not in a correct format" exception when reading value from cell.
Also tried "GetDouble()" as this cell contains formula that returns number, but the same exception is thrown.

var requestedFundingStr = worksheet.Cell("C6").GetString();

File that is causing this error - file download link

ClosedXML version 0.68.1.0, DocumentFormat.OpenXml version 2.0.5022.0