Excel is autoformatting SKU/part numbers as dates. An application is creating Excel spreadsheets from a database and entering part numbers, some of which begin as 12-. For example 12-5901. A new spreadsheet is created but Excel automatically converts a cell with a number to Dec 1-01 (12/1/5901). I can find no startup switch to prevent this kind of autoformatting. Formatting as general after the file is created gives a totally different number. Coding in the app to search out all numbers from 1- through 12- and adding a ‘ is going to take some time. Likewise prepending a zero to the number works but changes the number – no good especially if it’s someone else’s part no. Anyone have similar problems and have a workaround?