How can a special character in a formula be causing an execution error when trying to access it through Apache Poi in Java from an Excel cell?

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A special character in a formula can cause an execution error when trying to access it through Apache Poi in Java from an Excel cell if the special character is not properly escaped or handled. This can happen if the special character is used in a way that is not recognized by the formula engine or if the character is not encoded correctly.

To resolve this issue, one option is to modify the formula to properly handle the special character or to escape it properly. Another option is to use a different formula that does not require the special character or to remove the special character from the cell value.