Could you please give more details so it will help experts (not me) to help you.
1) What is the file size.
2) Does the file contains macro
3) Is the file formula heavy
4) What do you mean by "Corrupt", you can not save the file, close it, re-open it & unsaved data is still there. Or
You can not even open the file.
5) Try switching the calculation to Manual mode (Short Cut Alt T O) and see if it makes any difference.
1) What is the file size. approx 4.6 MB
2) Does the file contains macro no macro
3) Is the file formula heavy vlookup formula & sumifs formulas there with in sheet
4) What do you mean by "Corrupt", you can not save the file, close it, re-open it & unsaved data is still there. Or
You can not even open the file. after saving the file when I am re-opening the file its shows first repair options and when i clicked on save options a new msg box showing unable to repair the file and I then that file unable to open.
5) Try switching the calculation to Manual mode (Short Cut Alt T O) and see if it makes any difference. no difference still unable to open the file while re-open it.