Charset issue in a webform We have got a multisite structure with several sites. One of the sites has got a webform, from which client needs to download submissions from time to time. However, when we choose to export to Excel using the default values (delimited text and \t as delimiter format), Turkish characters get corrupted on a Windows. I have got no trouble on Linux, but client uses Windows. I must also mention that this behaviour doesn't occur on another site in the same multisite structure. What could I be missing?

EDIT: We are running Drupal 7.34, Webform 7.x-3.21, PHP 5.2.17, and we are using MS Office 2007. I export to Excel using /node/%nid/webform-results/download. I have also tried exporting the Webform to another site on the same multisite structure (hence the same PHP version) and verified it works fine there.
Regards,
This might be a fix for your problem, perhaps you should try this on your test environment: https://www.drupal.org/node/2060519