I have an excel workbook with several sheets.


Most have heavy formatting and formula.
The main sheet has rows with names and numbers in on column and amounts in the other columns.

The text in the names and numbers column is formatted to bold. This resets to normal text every so often.
Other sheets and colums are not affected?

Can anyonew advise the cause?

thanks

Seems like only two things could cause something to change all of a sudden...

1) Conditional Formatting

• Select the entire sheet and Data >> Data Tools >> Data Validation
  
• Is anything there? If there is, it would mostly likely be based off of some type of trigger.

2) VBA

• Same with VBA. Something has to act as a trigger to fire the code (if there is any)
  
• Select Alt + F11 and look through all of the modules to see if any code exist in your workbook.

http://www.rondebruin.nl/win/code.htm

Thanks
Could'nt find anytrhing.
Have reverted from macro enabled xlsm to xlsx.
So far so good.

Ta

Good news!