==== <span id="InvalidExpressionException">Columns with invalid expressions</span> ====
* Check At the time of importing your file's , the formulas in it are pre-validated. If there are any invalid formula, try the following:* Verify that all expressions (formulas) in your file are correct and correct those that are incorrect;* Check that your file expressions are expressions supported by TaticView. See the incorrect onessupported expressions [[Expressions|here]];