Excel formulas are a powerful way to insert mathematical calculations in your Excel spreadsheet. Formulas are cell entries that you store as an equation and can include functions, constants and even cells. These are used to estimate a calculated value and to display a result. In case you find formulas giving incorrect results or behaving in an abrupt manner, formulas might be corrupt. If you have used complex formulas that you cannot simply recreate, check the last file backup you made and restore from it. Many times, you don’t maintain valid file backup and lose data in such situations. Thus, in such cases, you can scan your affected Excel file using powerful Excel Recovery software.

If Excel formulas are corrupted, you observe any of the below symptoms:

.    You enter a value to calculate using a formula but it doesn’t give correct results
.    You make a change in a cell value, which is reference with the formula. The result doesn’t get updated
.    You fail to change the formula

Cause

You might observe the above symptoms due to following possible reasons:

.    Calculation option is set to manual instead of automatic. You can check for this possible reason by reentering the formula. If it works fine, incorrect settings is the issue.
.    Excel formulas are corrupted or damaged

Solution

You should try these methods to fix the existing behavior of formulas:

.    Reset the calculation option to automatic.
.    Repair damaged Excel file if corrupted:

.    Try to open the file with ‘Open and Repair’ command
.    Save the affected Excel file in XML or HTML format and again convert it in Excel file format
.    Use a macro to extract the data from file, if you have used a chart that is linked to the damaged Excel file
.    Use your recent file backup to restore
.    Use Excel Repair software if backup gives errors

Excel Recovery software are powerful third party products that could restore a damaged Excel file effectively. Supported with read-only design, such tools serve as valid and safe  repair excel utilities.

Stellar Phoenix Excel Recovery is a premier tool to repair damaged Microsoft Excel files. It can restore all file objects, such as hyperlinks, formulas, charts, pivot tables, macros etc. It supports excel repair for Excel 2007, 2003, 2002, and 2000. This read only software is compatible with Windows Vista, XP, 2003, 2000, and NT.