How to I open an excel file with error message file format is invalid?

Answer 1

That's not an excel document.

Answer 2

Open the file with a program called WordPad or NotePad.

Even if it is a Word document or an Excel document, it should still open AND these two programs should be installed on your computer.

Answer 3

What is the file name extension e.g. is it 'example.xls' or something different like 'example.doc'

If it does not have the extension '*.xls' it is not an Excel file and cannot be opened in Excel

If you let us know the file name extension we may be able to help further.

Answer 4

attempt this: initiate -> Run-> form 'Excel' and click 'ok' If this works then your excel installation is effective and you will only create a clean shortcut to excel to do away with the blunders. If, even though, this does not artwork you will would desire to pass into 'risk-free Mode' and verify if excel works effective there. If it does, another software is inflicting the blunders. If it nonetheless does not, you're able to ought to reisntall this technique.

Answer 5

Firstly, if the file extension is that means you can open it but if not that means you cannot open it or it may be corrupted by viruses, what to do is to install Norton System Works. Another thing is that you uninstall the microsoft office and reinstall it.

Answer 6

if the file contains only text then try opening it in notepad and 'save as' it in another location with new name and then try opening the new file in excel

Answer 7

Are you sure its an Excel file ? Are you sure you are opening it in Excel ?

Answer 8

try rollback because it's probably because of a virus most of the antivirus programs can't dedect. 3rd of every month it activates and deletes data from excel and some other office programs. so you may not rollback. but this will teach you to backup data i guess. FixBmalE, a little exe that norton created scans and cleans that virus but dont forget if it is because of that virus it activates on 3rd of every month. try nortons website