I have a problem and I think I have to delete apache cache I have searched for post but I have not been able to solve it. I have installed as a local server XAMPP took time working on a project that works perfectly on the external server and not long ago worked well in the local. in this project I generated an excel docuemnto with PHPexcel I saw myself in the need to update the excel it issued, I made the changes and downloaded the document but when I opened it it said:
"The file you are trying to open has a different format than the one specified by the file extension, check that the file is not corrupted and comes from a trusted source before opening it. Would you like to open the file now?"
I click on open and I see many strange symbols, reversed the changes and keeps sending me the same error not only of this but of others that previously worked well.
