Excel 2010 seems to have lost data - Microsoft Community

we have run diabolical problem excel 2010 running in windows 10 professional.  use excel workbook keep track of computer usage.  workbook has worksheets each month of year plus worksheet graphs usage.

the 2017 workbook malfunctioning badly.  it shows in file explorer monthly worksheets listed.  however, when open 1 of worksheets, shows 1 day of month.  in addition, there should row across bottom of worksheet listing each day of month.  absent. (this isn't true 2016 workbook displays properly.

we reinstalled office 2010.  made no difference.  have idea has gone wrong?

hi alfred,

the missing data on of workbooks can due corrupted excel 2010 file. initial troubleshooting step resolve concern, suggest run repair on affected workbook automatically fix file corruption. can perform steps under recover data corrupted workbook try , recover data might have been affected or lost during process.

note: it suggested create backup since steps performed may cause temporary or permanent lost of data.

we'll appreciate if can send update.

Office / Excel / Windows 10 / Office 2010