please check this link:
See Guide for Authors menu, above the first page
IER accepts Microsoft Word, and Excel files for graphics submission. High-resolution JPGs are acceptable for photos only. We encourage authors to submit colorful photos and graphics.
IER encourages authors to double verify the grammatical corrections before being submitted to the editorial office. Before assigning the submitted manuscript by the authors to the reviewers, editorial office ensures that manuscript with very poor English is not sent to reviewers. However, a paper with poor English and with the errors, the paper should be returned to the editor with the request that the authors have the material edited for content before re-submitting it for peer review.
The IER is published four times a year.
Authors may submit an unlimited number of articles, provided that all submissions are compatible with "Guide for Authors".