7za remove all files of a type from a directory

This seems like it would be a common thing to do, but I haven't found the answer. How do you remove all files of a certain type/extension from a zip archive using 7za? The test zip file I am using: 7za l zipTestB.zip Date Time Attr Size Compressed Name ------------------- ----- ------------ ------------ ------------------------ 2021-02-26 09:54:57 D.... 0 0 testFolder 2021-02-26 09:53:47 ....A 46 71 testFolder/testC.txt 2021-02-26 09:54:06 ....A 53 testFolder/testD.txt 2021-02-26 09:53:00 ....A 18 35 testA.txt 2021-02-26 09:53:11 ....A 23 testB.txt ------------------- ----- ------------ ------------ ------------------------ It seems like this would work, but it only seems to remove testA.txt and testB.txt (first level files). 7za d zipTestB.zip *.txt -r