BPC 4.2 Dimension not saved

Hello dear friends,

I 'm encoutering a prroblem when trying to process a dimension in bpc version 4.2

when i click on the process button i have this message

CANNOT SAVE THIS WORKBOOK

ERROR: DIMENSION.XLS EXCEL FILE WAS NOT SAVED

ERROR: DOCUMENT NOT SAVED

i tried to go to manage dimensions screen and save my dimension again

i saved the application using this dimension again

i saved on my desktop the xls file and tried to save it manually on the server but can't save it

please can you help me regarding this issue, how can i solve it without creating a new dimension etc...

thanks in advance

best regards

C.L