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