troubleshooting Question

Excel startup message 60D48010:: file format is not valid.

Avatar of rberke
rberkeFlag for United States of America asked on
Microsoft OfficeMicrosoft ExcelWindows 10
4 Comments1 Solution88 ViewsLast Modified:
My Excel is broken and I am getting desparate enough to think about upgrading to Office 2016 pro. Currently I have Lenovo t486p OEM Windows 10 pro with Office 2010 pro.

In the last decade I have developed hundreds of Excel Macros, and sometimes I "break" Excel.
Luckily, I've become proficient at fixing the damage, but today I am stumped.


Excel 2010 seems to work fine, but these 2 annoying startup messages appear every time I open excel. They say there is a broken file, but I have no clue which file.


60D48010:: file format is not valid.
70C48010:: file format is not valid.'

If I start Excel in safemode (control key down) the messages do not appear.


The following attempts to fix it all failed. Most of the steps were followed by a reboot.

Deleted everything from XLSTART.
Disabled COM and Excel addins.
Return macro security to highest level. No macros run and f11 shows that the only vbaproject is Book1
deleted xlb
repaired office.
"Reinstalled" Excel. (Actually used control panel to modify office to have Excel not available. Then returned it to fully available.
reset office ribbon and QAT.
screenshot.jpg
ASKER CERTIFIED SOLUTION
rberke
Consultant

Our community of experts have been thoroughly vetted for their expertise and industry experience.

Join our community to see this answer!
Unlock 1 Answer and 4 Comments.
Start Free Trial
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 4 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros