database error calc to excel?

I work from home part time, and use calc at home. at the office we use excel. If i use the “serach” function to find something at home in a column, i will get an error with something like " database can not have the same name"
i then rename it with _number( now at 4)
then excel says there is an error nd repair. i do and everything is fine

until the next time i have to search at home. If i dont search everything works together just fine.

Happens even if i make sure to end the search properly before saving.

if it makes a differnece- its office for mac ( not by choice! how the boss wants it)

Sorry about the formatting and wording, english is not my native laguage