html - .htaccess redirect to subfolder -

i'm struggling solution redirecting pages (or .html pages) subfolder , keep .html file name.

i have .html site lot of subfolders , redirect traffic same subfolder - /download/file-name.html

for example site is: www.mydomain.com/subfolder1/some-file-name.html redirected www.mydomain.com/download/some-file-name.html

www.mydomain.com/subfolder2/another-file-name.html redirected www.mydomain.com/download/another-file-name.html

ps. dont want "old subfolder" appears after/download/...`

thank you!

paste notepad file:

rewriteengine on rewriterule ^$ www.mydomain.com/download/some-file-name.html [l] 

save [space].htaccess within www.mydomain.com/subfolder1/.

this should help.